I'd have to agree with the majority of the comments thus far. I don't know if you're a beginner or not, but either way, the symmetry and balance of the portrait is very good. Most individuals struggle particularly with the symmetry of the features (they may have a slightly bigger eye, or a nose that is too small, etc.) All features seem to be in proportion. I prefer pencil sketches myself, but that's because you can easily erase or cover up any mistakes. The fact that you did this in crayon means you had a very good idea of what you wanted and confidence to not make any mistakes. Good job.