I hope I've succeeded in sending some people here from Goodreads. I would greatly appreciate some comments on whether either of the book covers shown above for my SF novel is a suitable cover for actual publication, or whether it's one or more of the following:
--artwork not sufficiently professional
--layout not sufficiently professional
--the wrong font for the text
--the wrong color for the text
--other text problems
--too much unused space
The version with the smaller planet is what I'd thought of using for the e-book, as the other is hard to read in thumbnail size.
Thanks for your input!