Two point perspective sucks, three point perspective even more. Both especially when you are not trying to draw simple things like boxes or cylinders but Gotham rooftops with stone gargoyles. Foreshortening of human body parts for two and three point perspective also sucks.
Yeah, I'm trying to draw a Batman and Nightwing rooftop scene, how'd you guess? One day it is supposed to be a picture with Batman standing (or crouching, I'm not sure yet) above one of these Gotham gargoyles, gazing over the city, with Nightwing coming towards him. (And btw, it's hard to draw Nightwing in movement, because his most typical movements, at least from what I can gather so far, seem to be these jumping, somersaulting, acrobatic things.)
Anyway, obviously I suck at staying motivated while working on difficult pictures, which is why I took a break and amused myself with doing a quick close-up sketch of a Batman/Nightwing kiss, for which neither perspective, nor foreshortening, nor gargoyles were needed. It's not great and it lacks expression somewhat, but it took only a little bit more than a half hour to draw with a tangible result (opposed to the last days of work which only resulted in failed layouts and perspective sketches). You can look at it
here.
I guess it's the picture equivalent to people posting unpolished snippets to their journals.