Ok so this is one of my first photos taken with my new camera. I went out to take some shots outside (In the afternoon, about 4 o'clock), it was one of the first days with sun after a row of days without. I was itching to have a look at how my camera performs outside, since i had got it a short while before. I've only just started getting into photography, I'm still a teenager and have basically zero experience. I would like to know whether this is a good shot and how I could make it look better. I think it's a bit too dark at the bottom right, but I don't know^^. Some suggestions as to how to make it better would be greatly appreciated

(composition, post processing etc..)
And I don't exactly know how to add EXIF data.. maybe someone could help?
Thanks ~ Smo
Camera: Nikon D5000
Exposure: 0.003 sec (1/400)
Aperture: f/10.0
Focal Length: 20 mm
ISO Speed: 200
Exposure Bias: 0 EV
Flash: Auto, Did not fire