I don't really have plans for a NSFW/SFW option, but that's kind of interesting. I'm sure people could get use out of that but it also seems like a lot of effort. NSFW stuff is pretty baked into everything.
For the Mirror description pictures, that is fixed in a few updates from now. I think by the 23.2 update that gets changed. Though you're not really missing out on much since that function is mostly meant to be used with the custom enemy sprites that people commission from me. For now I don't have a way of using those for the Android version, but I'm hoping to figure something out at some point