also if your after comments post the following for each of the few photos you pick:
Camera used (as well as other kit, like tripod, flash and lenses if its a SLR); aperture; shutter speed and ISO (you can get these from the propertise of a shot - just rightclick and access the propertise window - once there go to the additional info tab and scroll down to find the data).
That helps us understand what kit you have to use and also how your mind is thinking in each shot
A quick overall assessment is that there is a big quality range with this set of shots and some do show a lot of promise, though framing and not cutting off bits of the horse I think is something you need to focus on