So, I have been madly altering the look of the covers trying to use as much of the original artwork as possible. After all of that work, I can say that the bigger, brighter covers are more eye-catching.
One of the criticisms was that the figures on the cover should be near in age to the characters in the book. So, I tried to follow that advice as much as I could.
They also suggested that the scene represented on the cover should draw the audience into the story. So I tried to follow that advice, too.
Here are some of the covers that I worked on.