Cover poll for Kindle

I have a cover problem.

I have brilliant cover art, which looks great on posters, ads, headers and on paperback. But it doesn’t seem to do so great on e-book on Amazon. It doesn’t scale well for the thumbnail (example here), loses the details and gets blurred.

So here’s the question: should I switch to a more simple one for the e-book only, and retain the pretty one just for the paperback?

1. Current cover for e-book and paperback

2. The more readable, less fancy cover proposition