Nah, don't get too upset about the comment. Have a think about what they've said, and see if its relevant to the type of picture that you want to make. Keep posting your work here and in the galleries - though I think the forum here is a better place to get useful feedback. As for your pic, looks fine to me, though I agree with what FWTempest said about putting some things in the distance to break up the horizon a bit. Ruined buildings perhaps. Some mech footprints wouldn't go astray either.

Dreams are just nightmares on prozac...
Digital WasteLanD