Cover A depicts more of what the space ship looks like but I like option 2 because it shows the sun rising with the mysterious ship hovering from afar.
I prefer A, for being brighter and having the spaceship more prominent. Congratulations!
I like different aspects. A is great but title needs to be black to be readable
B is great for “darkness” concept. Title is readable
Someone in OP said you have 8 sec for a buyer to pull your book off of shelf or put in cart
Best to you on your new book. Great fun!!
I LOVE the subtle image of the face on the 2nd cover option. However, I believe the brightness of cover "A" will draw more buyers online and in the bookstores.
Deffinately B. It's is more intriguing. Makes you want to buy it