Audioicon
I listened to both Tracks in a nutshell.
Too much conflict with space (reverb) and lacking bottom and tightness.
First off, a nutshell is about the worst possible listening environment I can think of, you don't even say what kind of nut, what kind of treatment, what your listening position is inside....so of course, even
assuming it was one of the larger ones like a coconut, the reverb is going to sound artificial and choked and it will certainly lack bottom.
Seriously....
Greg, I'm a big fan of the practice of "referencing" both in mixing and in mastering, that is, checking what I am doing, or am having done by a pro, against another song in a similar genre that I think is well-mixed and mastered. If I'm paying someone else to perform these tasks, part of my communication with them at the start of the project will be to play them the reference track(s) and discuss what I hear and like. Then when I get the deliverables back, if I'm not dazzled, I can listen to them against the reference material as a sanity check, or if it's my own project, I can take both around to the usual car, bedroom, living room, backyard, school gymnasium, beauty school, etc. locations for comparison if I wish.
Your song kind of reminds me of the sounds that Billy Idol, Steve Stevens and Keith Forsey got on those classic albums. So I agree with what others have said: against
Rebel Yell, yours sounds too muffled and theirs sounds too thin.