Yooo, it super funny! I like simple and minimalistic style, mechincs and gameplay are super smooth and polished. You did a great job. I think it will be funny to play paper-rock-scissors with gameplay like that, maybe in some kind of party game on 2-4 players.
"I wanted to use photos of my own hands but it came out weirdly."
Oh, no doubt, i think it should be mode in the game :D
Good luck with this project!