here comes some more constructive critisism!
Faces are really hard, but they completely set the mood for the drawing.
And I'd also say that the hands look a bit weird, but that's nothing to be ashamed of: hands are maybe even
harder to draw then faces!
You'll learn a lot by practising more and observing people around you.
don't forget to do some shading, it adds a lot of depth to your drawing. Now it all looks so flat.