thanks Decy, i will try and work on simples, though i realized i have no idea how. I never practiced them, i got a lot of sketching to do.
umnoid, there are no letters in there, i'm sure of it. It's just a pointy mass of something, that isn't graffiti. and the second one is just really weak in my opinion. Your letters gotta have flow, they have to look good, you need to work on them heavily before you go on to more complicated sketches. Maybe you've been way too focused on an idea you've had in your head of what a mural could look like, but you aren't at mural point yet. You'll get effects like those eventually and if you try really hard, but for now start slow, work with your letters and master your craft.