You have a very nice shop. I love your bookmarks.
I have three shops. Two of them (jewelry) are on vacation at the moment because I am in the process of reconsidering change of name, reorganizing, overhauling, etc. One of my shops sells miscellaneous vintage items and other items and it is my best seller. The other two sell jewelry - a very competitive field. I started with one jewelry shop, but decided to open a second one to target specific markets. My shops were never too busy, so maybe that makes a huge difference regarding having more than one shop.
If we would be allowed more sections, perhaps I would suggest you keep only one shop.
In my case, having more than one shop seemed daunting at first, but soon I got used to it. For me, the only drawback is having to log out of one shop and log into the other to check stats, etc. However, with time, that exercise has become second nature.
Below are some links that may be of interest to you.
Etsy on opening a second shop:
https://www.etsy.com/help/article/132Here are a few comments from the Etsy Forums, with pros and cons:
https://www.etsy.com/teams/7722/discussions/discuss/16356645/https://www.etsy.com/teams/7718/questions/discuss/16491113/page/2Good luck.