You haven't given the original artists any credit so it's actually illegal for you to give anyone permission to use this piece. I know you made the collage, but the original images aren't yours. I know this because I've seen them before elsewhere.
When you use people's work, you need their permission. You also need their permission before letting people use this piece. You've done a good job at the collage, but you need to respect the other artists' rights.
No! Not at all. You've still clearly put your own time, work and creativity into this photomanip. What you would normally do is write underneath it, "I do not own the images used in this manip". That way, it's clear that you did made this piece, but it won't mislead people into thinking you took the photos/whatever.
I know I'm acting like a bitch to you. I'm sorry. You seem like a nice guy, and you're a good artist, so feel free to ignore me.
For sure I will put your devianart Web Adress on the Inside of the cd case so people can go check out your stuff. Its kind of like ambient music meets rock and roll. Here is one of my songs. - www.myspace.com/blueonionfever -