Do this
Hi. I'm no professional when it comes to making head textures. In fact, I'm still learning too, but I'll share with you what I have in mind.
Firstly, no offence but my friends and I laughed for minutes because of the eyes. I'm not going to sugar-coat what I'm about to say because sometimes, a pat on a back and "good job" won't get you anywhere in life. You should really put some effort into the eyes, it looks like he's participating in a "who can squint their eyes the smallest" contest. If that's the expression you're making, then yes, okay. Even so, the eyes are far too close to each other - look up for examples of faces. The mouth looks a little too high up on his face and his hair is just a lazy piece of work. I mean, did you seriously just use a pen tool and zig-zag your way through this? I understand if it's your first few months making these but if you know that the first head texture you made 2 weeks ago was "bad", why do you repeat your mistakes?
The only thing I "hate" about this thread is the title itself. Everyone has their unique way of presenting art, don't be ashamed about it. Even if it's bad, this is the art thread. We're all here to judge and criticise your work so that you may improve your quality of work in the near future.