I bought it and tested it. I like the graphical style, really something different!
On the Android question: It doesnt work under Joiplay (yet), as the RenPy plug-in of Joiplay is using version 8.1.3 and your game is already on 8.2.3 of RenPy (if I saw that correctly in your game). If you stick to that version, the plug-in will probably work in a few months, when the next update for Joiplay is coming.