I can understand the frustrations. I have submitted several wallpapers, none of which have been accepted. You cant tell me it's due to them being "Brycey", because I see several new ones on here that are. The biggest thing that upsets me is that you don't even offer the name of the moderator that blackballed the work. Do you guys use a voting system of sorts between you to moderate the wallpapers? I think that would be a good plan because the tastes of the one, may not be reflective of the tastes of the many. (gad that wreeks of trek)and I don't really think your system is fair as it stands. Moderations is necessary, I agree, but when you reject one and approve another that, in someones opinion, is not as good as the one rejected, it indicates that the system may need reworked.
Perhaps you could put all submits into a special area which you cannot download from, but only vote on. Leave the items there for a week or so. If the voting warrants it, then it gets approved for downloading etc.. if not, then out it goes.
Please give it some thought, as I think you are discouraging alot of potential right now.
Perhaps even letting us know who rejected the wall would give us a start. If we want to know more we can email the moderator directly.
Thanks for understanding..