Your shop looks great.
I'd suggest you change your titles... put the description of what the item is (original art, watercolor, oil, ink) in the beginning, and the name of you piece at the end. That will make it easier for people to find you, because they don't know the name of your paintings and it is not very likely they will type that into the search bar.
Another thing you could do is offer art prints. It looks like that's what works better for artists on Etsy, because it is cheaper and many people cannot afford to buy original art, but if they like your work they would buy your art print or ACEO.
As for that first sale, mine happened a week after I opened, but I opened right after Christmas, and got lucky I guess. I only have 14 sales... building a business here is a slow process, but it will be worth in the end. Just don't lose hope, your work is beutiful, and you will get there.