I took a peek at your shop and noticed a few things that I feel you should consider.
First impression: I was a bit confused on what you sell until I actually clicked on one of your items. I would suggest a banner and an announcement as well as a brief description of what you sell (under your company name). Not only will it help potential buyers if they land on your home page but it will also help in search ranking.
On many of your paintings you have your website address in the title - a BIG no no here on Etsy as you are selling the same on that website and it can be seen as fee avoidance. I would highly recommend removing it from there. You can mention your site in your About page (I noticed you have not added any links there).
I would also recommend you spend a bit of time filling out your policies. That is something that is extremely important to me as a buyer.
There's great advice in the seller handbook in the left navigation bar. It's really helpful.
Your art is beautiful!
I wish you much success!