Hey mate :) would be interested in joining as artist if you are willing. illustration, pixel art even can do a bit of 3d modelling if the games calls for it.
Never joined a jam in my life, and my motivation is I guess I always wanted to join one but never really managed to gather all the skills to try it solo. When I saw a jam specifically on collab I thought of giving it a try.
Any questions you may have let me know
Cheers