Hi! Beautiful items and photographs!!
For a new shop, 6 items in 30 days is good! I wouldn't worry about slow periods (none in the last week) - Etsy sales are usually spotty, even for the more active Etsy shops.
I definitely think more pictures would be good, at least for the listing I checked (faux leather sleeve shirt) there are only 2 photos. I think it's better to show the product from all angles, etc, and try to duplicate what the buyer would actually see/feel if they had the product in their hands in real life.
And yes, I do think patience will help. My friend who has a very active etsy shop said that it took her about a year to start getting pretty steady sales. Part of it, at least it seems, is that once your products get a lot of views/sales/faves, then you get bumped higher up in search results.