That's a shame, and it's happened to all of us artists at some point, I think! It's happened to me as well. The album that this drawing of mine will be on is coming out next month or May, so I guess I'm in the clear?
Hopefully it works out for you, though. I like your work and it deserves to be on the cover of an album! I see it being some sort of
Gore grind demo or something. With my case, the person who contacted me said they
Wanted to use my art and then didn't reply for about a year or more, and then out of the blue they contacted me saying they were almost done their album, and then it happened for me. Maybe that'll happen with you.
I do album art for bands! Send me a Message or email [email protected] for more info. My website: http://curtisbotham.weebly.com/