Who owns the rights to the picture?
We will jointly agree on this upon ordering but the most common agreement is a form of licensing.
You are then free to use the image in the ways we AGREED upon. If we agreed upon me making a t-shirt design you are NOT allowed to do stickers, album covers, backdrops and so on from it without checking with me first. ( if you release a song as a 7” and the label then puts it out on tape, CDs LPs and digital download but only compensate you for the song for the 250 7” it wouldn’t feel ok with you right?)