Put my art wherever you like with credit to my Neocities, my presence on the site you're on, or in text as "Enforcer @ Draggian Universe" or "TheEnforcer".
Crop my art or add backgrounds to pieces that didn't have them, with credit.
Use my art as profile pictures or icons with credit.
Sell or trade characters for non-IRL currency with art I made for you attached.
Use a custom design I made you as one of your OCs, with credit to me for the design.
Use my art to link to something of yours, with credit to me in text somewhere.
Save my art to your computer and reupload it to your own server of choice.
You Can't
Edit my art in any way other than cropping or adding backgrounds to pics that didn't have them.
Use my art for any financial gain, including anything NFT, crypto, or blockchain-related or selling characters for IRL currency with my art attached.
Claim you made something I did.
Use anything that isn't free to use or specifically made for you.