Reveiw

 Before

After

 I used the crop tool to expand the picture to add a white border

before

After

 I copied the face of all four men to the right and then trimmed them on to the heads of the others.

 Before

After

I creat a new layer over the circle and used the paint bucket and a blending mode to change the color of the t shirt

Before

After       

I used the liquify tool to make the two people appear to have large muscles.

 before

After

 I used the puppet warp tool to mess with his face.

before

After
 I used the clone stamp tool to make another penguin.

I used the gradient tool to blend three random images