I wanted to take some pictures so I went out to my driveway and took these. 50mm, F/2.5, 1/400, ISO 100. I would appreciate some C&C such as what kind of ground would have been better etc.
This one was shot in B&W. Levels adjusted and noise added in photoshop
This was a color version but came out this way when I tried a pin hole camera effect tutorial.




You should have no problem with your algebra with those math skills. 
