About the trees...they look like arrows pointing upwards, so I think they take some attention away from Ed. It's a good thing that he really stands out, though!
I think that next time, you should try to put more focus on your subject, like making it bigger or not bringing it so close to the edge of the page (by doing so, you create tension for the viewer); which brings me to another thing about the trees: they're tiny compared to Ed's height (and he is short, no? )! Also, you should try shading next time! I can say that I could use some work in the shading department too( ), but it comes with practice. :3 Keep it up!