I think the big thing you need to do first is to remake the concept sketch I did there to post my foreground idea, it was a pretty shoddy doodle only meant to illustrate the concept and as such the thinner lines and clashing level of detail from my work there kind of drag the whole of it down.
Plus, it doesn't even tile particularly well, there's a big ol hunk of empty black space on the left! Lame.
I genuinely don't mind when people use my work on these kinds of edits either, but in this case it really is detracting from the end product!
EDIT: There's also a notable "cutoff" for the background buildings, it is very noticeable.