Very nice sketch. Not being happy with ones sketches is normal I guess. off to the next one. You seem to be a perfectionist, which is still a good thing. I guess it's also the reason I could never get a tattoo. As soon as I finish a sketch of a painting it gets old already. Have you ever tried shading with a led pencil before?
I like to not look at a drawing later and think, 'oh, that could've been better', so in a way, perhaps I am? And yes, I used to shade with led all the time! But that was long ago. I just discovered the wonders of smudging so I'm kind of obsessed lol. I'm planning to try that again soon, thanks for the suggestion!