Fire in the heart
While you have a developing sense of colour, you seem to not structure your work properly before painting.
The right shoulder does not seem attached to the body, and there isnt much body language to suggest he is pulling the reins on his camel.
It seems like all his muscles are tensed to the maximum, way too much for the action he is performing.
The face seems to not have an inherit structure; it looks generic and too young for the body.
What you should keep in mind when planning pictures like this is to work from Structure to Flesh to Skin/Shading. Without a proper underlying framework any building will quickly crumble.
Good luck and keep drawing!