Osman

Where: Somerset House
Joanne Black style: Jitrois leather leggings, Sergio Rossi over-the-knee boots, Zadig & Voltaire polo neck, Sharon Wauchob coat, Chanel bag, and Damiani earrings

There are only a few things that will get me out of bed the day after a post-Bafta party – and fresh designer Osman’s autumn/winter collection is one of them.

What this man doesn’t know about jersey just isn’t worth knowing. When four models opened the show in beautiful purple jersey dresses – draped in a Grecian style – I knew we would be in for a treat. Osman, who believes Cate Blanchett would be his ideal customer, loves strong, stylish female figures with a sense of adventure. This certainly came across in his show. Hot pinks added a splash of confident colour to the runway – Osman even joined in with bright pink socks and a shirt – a striking dresses, tops and trousers showed just how versatile jersey fabric can be.

Best look of the show? It has to be the grey check and leather jacket, worn over an icy grey long jersey skirt. It was elegant, chic and worthy of space in any wardrobe.

Where: Momo, London
Joanne Black style: Nicole Miller LBD, YSL heels, Damiani earrings, and a Chanel bag

What could be better than spending the day surrounded by beautiful clothes? Spending the day and night watching the latest fashions – and the fashionable – come to life.

The Bafta after show party was a style-spotting extravaganza. Here are the highlights…

Best dressed: Best Actress winner Carey Mulligan takes away my first award for her stunning black and white figure-hugging floral dress. She told me it was by famous French fashion house Vionnet, which was started by Madeleine Vionnet – the queen of the bias cut.
Best supporting style: Carey celebrated her win with sisters Mary-Kate and Ashley Olsen. Mary-Kate looked fab in one of her favourite Astrakhan coats and Ashley showed us how to play it cool in a cream trench coat.
Best leading man: Ok, I’m torn on this one. Nominations include the dashing Colin Firth in a Tom Ford tux, and Matt Dillon and James Nesbitt – also sporting the tux look. I think, however, Josh Hartnett clinches it with his effortless style – grey beanie, a black leather jacket, red check shirt pulled and blue jeans.
Best star turn: Anyone would have thought Precious star – Gabourey Sidibe – had won a Bafta the way she was smiling. Wearing a taupe and gold floor-length dress with flat shoes, she oozed star quality.

Inspired by Dimitri Chiparus' sculptures

Signature Knitwear by Mark Fast

Where: Flowers Cellars, Covent Garden
Joanne Black Style: Prada Jacket, Zadig & Voltaire Jeans and polo neck, Ash boots and an Alexander Wang bag

The man who put plus size models on the catwalk is back. And with women such as Crystal Renn taking to the runway, Mark Fast certainly knows how to show big means beautiful.

If you’re going to wear knitwear, it has to be Mark Fast knitwear. Influenced by the bronze sculptures of Dimitri Chiparus, the colours of coral and sea creatures and winter warmth, Fast’s Autumn/winter 2010 collection makes great use of his signature elastomeric yarns, which are designed to cling to anything that moves. But as well as his short, tight and stretchy style, Fast fashion now includes waterfall scarf trails, capes, full skirts and sari-style stoles.

It seems Sarah Brown, the Prime Minister’s wife, approves of Fast’s sexy knitwear. Sat on the front row at the show, she looked lovely in a skirt by eco-chic label People Tree and v-neck sweater by Marks & Spencer, which she dressed up with a large stone pendant from jewellery label La Diosa.

Fast designs clothes for the ‘woman who knows exactly what she wants and takes risks’. That’s why if you’re looking to stand out this autumn you’ll need to slip into one of his colourful body con knit dresses.

Where: Freemasons Hall, WC2
Joanne Black style: Black jeans and cashmere jumper by Zadig & Voltaire, Joseph belt, leather Wunderkind jacket, black Sergio Rossi boots and an Alexander Wang bag.

Georgia born David Koma is a 24-year-old with talent. His geometry-inspired debut collection was daring and delightful – and did not disappoint.

If I had a wardrobe filled with Koma’s body con dresses, I’d be a happy woman. I love his sculptured shapes, tight-fitting and heavily embellished pieces – with pure wool, leather and suede materials and asymmetric detailing. The runway is certainly a colourful place with this young designer around – he makes great use of colour and his stained glass statement jewellery is fabulous.

Fame suits Koma. He’s gone from strength to strength since winning the Harrods Design award with his 2009 MA Graduate Collection at Central Saint Martins. I’ll be strutting my stuff in one of his masterpieces soon – and you can too after a trip to Browns – or www.davidkoma.com. I can’t wait until his next show – Alexander Wang has big competition.

Kate Moss, Annabelle Neilson and Naomie Campbell in ALexander McQueen

Piers Morgan and Naomie Campbell in Vivienne Westwood

Where: Somerset House
Joanne Black style: Alexandra Wang dress, YSL heels and a Chanel bag.

Naomi Campbell was in top form on Wednesday as host of the Fashion for Relief Haiti charity show. She opened the star-studded event with fellow supermodel Kate Moss and Annabelle Neilson in a dress from the late Alexander McQueen’s last collection. She then took to the runway with Piers Morgan and looked stunning in gold Vivienne Westwood dress – which was later auctioned for £20,000 pounds – before closing the show on the arm of her mother Valerie.

It’s not every day you get to see Ronnie Corbett dancing to Michael Jackson’s Billie Jean, Dame Shirley Bassey and Geri Halliwell strutting their stuff on the runway and model mum and daughter Amber and Yasmin Le Bonn walking together, so I was glad to be up in the front row to catch all the action. I was also delighted to see Sir Philip Green bid £100,000 for the McQueen dress and leather belt Moss wore on the night – a fitting tribute to the fashion designer who died in such tragic circumstances.

I don’t think I’ve seen a more powerful, colourful and tearful start to London Fashion Week. With over  £1million raised for the Haiti relief effort, it was a big show with an even bigger heart.