Well, on the 135, you would need to be pretty damn low BF% in order to look big at 135lb.
Urijah Faber - which IMHO is one of the best "physiques" in MMA - competes at 135lb with 5'6'' height. Yes, he most likely walks at 150ish, but then someone who is 5'5'' or below could perhaps look jacket being at about that weight.
But to a normal person, at their 15% of BF, 135 will be too damn small to have anything apparent. So, in short, put on weight and focus on deadlifts, compoounds, the rows and shrugs that were mentioned. One thing I enjoy and I think works pretty well is to do a deadlift, and on the apex of the movement shrug with that weight and then refresh. Has done wonders for me.