Upload & Sell: Off
You are off to a great start. I like your eye for compositions and you are paying attention to the backgrounds It would be a big help if you kept the EXIF data intact, knowing your settings helps us to make intelligent comments. I see the shutter speed on the first is pretty low 1/125 at 400mm. A rule of thumb is to have the shutter speed the same if not faster than the length of the lens. In this case a good starting point would be 1/400 if not faster. That may help you to produce sharper images.