This angle that is focused on the wheel of the tank makes the man seem to be smaller. In real life however, it is around the same size as the tank. Also, the leading lines of the wheels make the tank appear to continue on for much longer than they really do. 

The horse appears to be quite large. It is the same size as the tree, which must mean it's either a big horse, or it was taken from an angle meant to make it seem this way. 

In real life both of the figures are around the same size. However, this picture makes it seem as though the person is much larger. Since I took the picture from the above the man's head, it made it seem like he was looking way down upon the dinosaur. 

This picture was taken from close behind the soldier's head, and with the leaves quite a ways in the background. This allowed the space in between the subjects to act as a minimizer and make the leaves appear smaller. 

The soldier seems as if he could be a part of the scene and almost as though his size would fit in. This happened because I set the figure on a ledge which made him seem taller. I cropped it so that now, it looks like he is kneeling on the ground. 

I took this picture from below which helps to make it seem like the soldier is much smaller than the man. Since his head isn't in the picture, it leaves the observer with the opportunity to decide how it would look and how far it would extend upwards.