Nice work on the assets! It is awesome to see people using Godot and Aseprite. You should add a jetpack on to the character and have movement feel more zero-gravity like and gain velocity via the jetpack.
I am not sure if you are looking for an online community to hang out in, but I am part of a group called KBVE that is full of passionate players, creators, and technology advocates. Feel free to join us: https://discord.gg/cjAKnUd7fj