Illustration Color Exercises

So far illustration class has been great. I have been working to try and get in a lot of practice.
Here are three color exercises that we are doing for class. We basically had to color a scene however we thought best. I decided to go with using the same value for most of the color and changing the intensity in parts. It's my first color exercise, really..but we will see how the class critiques go. (I did not do the actual illustrations by the way).