In your mind it is a picture of Maggie and her toy, but for the viewer who just came around the corner and is confronted with this image, it is entirely different. This is a classic example of why I should never read the caption before looking at the image - I often get a frame of mind or attitude about the picture which makes it hard to be objective.
I see a landscape/seascape that is very nice, slightly underexposed and with a reasonably good composition that could be improved upon by simply cropping away some of the upper sky. The horizon is a bit too central.
I will retract my comment about being underexposed. As I look again, I see that it is one of those very heavy overcasts that leaves the foreground looking too dark. As best as I can tell, the sun is low and to the right, but the lighting is very poor for the foreground. No matter what you thought your subject was, the lighting has chosen otherwise. In the scene that I see, we have a landscape/seascape that has a little added interest in the form of a nice looking dog. The frisbee is just a distraction that does not help the image.
In order to get what I think you wanted, you have to have lighting that gives the subject what it needs to set it apart from the rest of the picture.
It's very nice, and I like it overall, but i don't think it conveys what you had in mind.