Other religious symbols
I notice you have a Christian cross. There are a lot of other religions in the world. Please consider adding some of them as well as standard features (I'm in Doodly Club, but I think this is a good feature for the whole product.)
You can get some suggestions (there are multiple Christian symbols in the list, I could understand not using all of them) at https://www.cem.va.gov/hmm/emblems.asp .