You can donate any amount you want at any time, it would help out in my many projects.
As for Commissions, I can probably handle 2 images at a time while I'm working on other stuff, from 32x32 to 200x200 pixels and all things in between. If you are interested, then send me a message, but note that I don't do NSFW content. I made this available mostly for the occasional request I get for pixel art, but I'm also extending this to musical stuff.
If you enjoy the instrumentals I make and have made so far, you can commission me for a track of your own. I mostly do soundtracks for games and videos and stuff, however, I'm only available currently for 2 tracks, each 2 minutes long, or 1 track, no more than 5 minutes long. For more details message me here on NG, also note, I charge more for music than for art.
You can also e-mail me at firstname.lastname@example.org if I'm not too active on this site.