I like your POV and the stance of the gull but moving slightly to your left would have included the shadow in the frame and as the bird is looking to the right, would have given it more room to look into. Try positioning the animal off centre where possible leaving room to the side that it is facing in to.
The shot would have benefited from using exposure compensation set to minus 1 or 2 to prevent the burn out on the white chest area and from zooming in closer to exclude some of the relatively uninteresting background.
Having said all that, it is good that you are trying something out of your comfort zone which has to be commended.
I have uploaded a mod to try and demonstrate a different approach and hope you find it useful.