Right... the bit that comes up at the top where you say 'I'm x, I'm based in x' etc, if that works the same as Etsy then this bit will be picked up by Google, so you need to SEO it (Search Engine Optimisation) so that the first few words are things people might search for. Off the top of my heart something like 'Art, paintings and pictures have always been something I...' because then you're getting 'art', 'paintings' and 'pictures' all key search terms in your first few words and therefore you'll end up higher up in the google list, iyswim.
Also try having different price points in your shop, so you could do prints of your original artwork that sell for say £8, then make cards maybe with your artwork on the front at say £3 each. Having different price points really helps.
I don;t know Folksy well but I couldn't find a bit where you list your selling policies/returns/international shipping etc, if you dont have a page like that I'd add one as it gives people more confidence when buying from you and also states your policies clearly.
You've got no feedback at the moment, I'd buy some bits that you want/need on Folksy so you start having feedback. Although this would only be feedback for buying (not selling) it will still show people that you have purchased items, have feedback and are not a 'scammer'.
Hope this helps 
Now come and friend me on facebook 
facebook for Mollymoodesign
Oh and you need more pics of your work, so pics from the side, pics showing the work in a 'dressed' room etc.