Lines

Framed the brushes of the plant but not super close so you can see what is framing it as well to maintain the neutral colors and the rusted look.

 I used the juice machine hole to frame the door frame of  our school.

 Using the metal gate I framed the building making sure that i included the most of the tip of the building and alienged it with the top and bottom of the outline of the square.

 Inside the picture if you look closely you can see that two little birds are floating in the water, in the very middle.

For this picture i framed a picture using the same object to have the same inside the hole of the objected you wanted a picture of.