Nice site, easy to navigate, everything well laid out.
The 'all departments' tab on the side is nice but would be more useful if you categorised your products; I can see they're all hair ties but maybe if you put them into sections of what you could use them for eg. party, everyday, holiday, etc. Would just make it easier for people to find what they want :) however, as you don't have hundreds of products this isn't necessary, it would just be nice.
Also, the white background is a little plain. Don't add heaps and heaps of bright pictures, because that detracts from the bright colours of the hair ties, but maybe you could put a background colour or maybe a sort of pale rainbow or something? (I know you have a friend that is going to be doing graphics)
Otherwise, I like how it's laid out, well-written and edited words (I hate spelling mistakes, lol) and it's all relevant and concise. Might want to add more info as to where you ship, costs, etc. Site is easy to use and looks quite professional :)
Good job :)