As far as "silent-style" goes, in all of my brickfilms so far I've only used a single piece of music per film, and people seem to like it, so I'll make a few suggestions. Basically, find music that fits the style of your film well (for my projects, I've found that classical music works really well). Also try to synchronise the music to the actions or camera movements of your film.
Also, always remember that film, regardless of whether it has dialogue or not, is a visual medium, so focus on the presentation. For instance, different camera movements and different angles and various other cinematography-related things, and the feelings or meanings they can convey (e.g. a ground-level camera angle or "worm's-eye view" gives has the effect of making a character appear powerful or in control, to give a random example). Another good way is to try build detailed and well-designed sets--Nathan Wells' tutorials are very helpful in this regard.
Retribution (3rd place in BRAWL 2015)&Smeagol make the most of being surrounded by single, educated women your own age on a regular basis in college
AquaMorph I dunno women are expensive