Def was not expecting to hear Bossa Nova style music in this jam lol, but all of these tracks have a super cool take on the theme that you were going with! It makes for a playful space adventure game. I do think that the songs were probably lacking in some mixing effects (except for "Memories" as this seemed to be approached differently in its production than the rest of your tracks). I don't have any specific advice on mixing but it could be something worth exploring for future tracks. Keep it up though, loved what I heard!