Hi Lillylou,
You could always add a blog section to your fashion site, a lof of businesses are doing that. Apparently it's better to keep the two seperate as Google pays less attention to business blogs! So maybe have a fashion blog to talk about your fashion business site.
There are some SEO (Search Engine Optimization) people on this forum who will offer plenty of good advice and most have their site's in their siganture which you could start doing as well. I always check out peoples sites when reading a post.
One of the best recent sites on website promotion i've seen is
Practical Advice to Succeed Online plenty of great free advice.
What is your site address?
Best of luck