tonal values-is the light or dark of a color independent of its chromaticity (hue and chroma). 
Crop- cutting out unwanted parts of the picture. 
Retouching-making changes to the picture such as lighting changes.


I learned that retouching a picture can totally change it. and you can manipulate it to make it look exactly how you want it to. How you crop a picture can change the main focus of the picture and how someone looks at it. I like the coloring in my photo because it does not look like a normal picture, and i think it's cool looking.