I'd also love to collaborate. Feel free to send me a portfolio of sorts here: https://discord.gg/UpP4Rafq.
For this jam, I'm probably going to make a 3d game with visual-novel style interactions, so your art would help a TON.
Also, in the future, I'm looking to revamp some games of mine with 2D art (1 needs a goofy MS-paint style and another needs a more Nintendo-y 2D style, like flat Mario Wonder), so again--collaborating would be AWESOME.