Shutter speed;
Shutter speed is capturing the movement within you're picture. The higher the shutter speed (1/500) the crisper the photo. The lower the shutter speed (1/2) the blurrier the photo - it all depends on what context, you are using it for and what you want. For example, if there's a fast cheetah running in grasslands, you would have it on a high shutter speed in order to capture the movement.
Worst Photo;
This photo, turned out to be the worst one because it was quite blurry however, I did like the closeup. Looking at it you can see that the focus, is the water and bubbles.
Best photo;
This photo is the best one I took because, the bubbles were a lot more crisper although, if i had gone even closer, like I did with my worst photo, then I think it would have been an even better picture. Overall, it was much more apparent then the worst one.
Testing shutter speed whilst moving
This was on a high shutter speed between 1/500 to 1/125
I found that having a higher shutter speed definitely helped to capture my model but in a crisp way - nothing was blurry and everything looked good. It gave me the general idea of what I need to do when maybe taking pictures of moving cars or objects. You almost get the illusion of him flying.