EDIT: Added an extra layer of shadows for the ground details to add some more depth there.
Here are the colors for page 166 of Sultry Summer. After a moment of rest and hydration, Ben and Gwen are both refreshed and ready to make up the proper way.
Oof, this took me forever and a half to color, but finally done. I wasn't sure how I wanted to do a lot of things, including the shade, so I redid a lot of things. Also, yes, those are character themed sports drinks, but given how famous Ben 10,000 and Gwendolyn are as heroes in the future, I imagine they have their own branding/merchandise.