Hey , this is really my first time critiqueing an art piece , but I'll give it a try.
1. her lips make her look vampire-ish. I thought she had fangs at the start.
2. Her hair looks very flat and lacks dimension
3. her skin could be whiter to make it apparent that she is a geisha
4. she seems to have no ears
5. her kimono doesnt look like a kimono , which are usually wrapped around a person.
However the piece is actually really good. Her face is pretty and her eyes are really intense and well drawn. With a few changes you could make this a great drawing.