Your style screams early TF2 mapping style, similar to the stylings of early Vilepickle. The major reasons I see for this are the relative blocky form or archy corners of the map combined with base color strips. It isn't a bad thing, but it isn't as impressive as a valve-level detailing work.
Alot of it is also the fact that the bases are fairly clean (IE, blocky, conforming, no disruptive overlays to add in noise) and the lack of inaccessible detailing areas in the apparent screenshots. I'd say take a look at Junction for what you can do with that; Junction may be spamfest in a 2v2 but it's got amazing detailing.