These are both great examples of what was asked from you in this assignment. Both photographs adopt the technical considerations requested in this assignment. The water in your first photograph is slightly out blurred to a slower shutter speed. However, the increase in shutter speed has not overexposed the rest of the image or caused blurring in static areas of the image. Great work.
Your second image is also technically well constructed because you’ve isolated your main object in the foreground by using a shallow depth of field. The important element to recognize here is that you’ve isolated your main character but you haven’t removed the context of the shot. Your audience still has a sense of “place”. We can see the water and identify perfectly the shape of the sailboat in the background. By controlling your aperture the way you’ve done in this image, you can mimic the human eye in the photographic presentation of the photograph.
The composition of the ocean photograph is great. The only issue I want to bring up is with your statue image. Notice the composition “amputates” objects at around the 4 edges fo the photograph at distracting points. For example, notice the small statue of the boy on the right side. Notice how you’ve “cut off” the right side of his head and body, just slightly, with the edge of your photograph.
The reason this happened is because you were visually focused on the water above the other boy’s head. When you compose your image, you need to be incredibly aware of all of the space within your 4 walls. Once you’ve composed your main image, take a few more seconds to look around the 4 walls of your photograph too see if you’re amputating any important secondary object. This is undoubtedly the biggest mistake photographers make, and also one of the easiest to correct.