The ToS is linked at the bottom of every page, but it doesn't contain any content guidelines, since that's outside the scope of a ToS. The rules for what is and isn't allowed in a submission are on the new submission page, right above where you select which file to upload, type your description, etc.
Verywell, i previously messaged a mod with a few questions, maybe you could help me out instead as i believe they may be sleeping, ill wait for them to get back to me with the others, but could you direct me to a proper ToS as im unable to find one, completely new here.
WIPs (works in progress) and non-pixel art aren't allowed in the gallery, even for avatars.
There should be a pencil icon underneath that takes you to the edit page. There is a delete button at the bottom of that page.