@laurel-aylesworth Hi Laurel,
I really like this piece a lot!
I think you could benefit from reducing the size of the hill - or cropping it out more. That will give you more space for your main character. I also think you should push the concept a little further. Either make the person on the scooter bigger to show the contrast between the couple and the rider - or - make the rider another skinny elderly person - perhaps even a couple on the scooter to show the juxtaposition.
Going with the fat person could get you heat online...we live in a very critical world online...I like both options.
Cheers,
Will