Likewise, I noticed that, after being closed for a month in Aug, and then 5 days in early Dec, views/sales are lower for a period of time. But things eventually pick up just like before. I never did anything different...and I don't spend time promoting.
I think the biggest thing for you to make headway would be to list more items. You only have 37. The more items you have listed, the more opportunity to be found. I may suggest varying your titles a bit more. Many start with "real flower...: Also, brainstorm and try to come up with a few more items that are totally different than what you already make. How about a fan pull? Or an ornament? Or small decorative pictures? By doing this, you break into totally new areas for exposure (and have many new tags to explore). Again - more ways to be found. I've found these 2 things to be the key to my success. Maybe they can work for you.
I wish you all the best! Your work is beautiful.