Will I click on it
Maybe. It's giving me teenage witches vibes I love witches.
What's my opinion
I love how much variety there is in your cover, they all have their own unique mood, colour scheme and lighting and I like that. My favourite ones are probably the second and third one, you really nailed the composition and lighting there. But every cover looks interesting and unique and I can tell you put a lot of thought into every one of them.
What can be better
You're doing really well already imo ... the composition in the fourth cover with the glowing hand is throwing me off a little, it just looks a bit unbalanced ... I'm not entirely sure how to change it, but I'd suggest either adding more blue light to the rest of the scene or increasing the intensity of the red glow in the background. Or maybe it would help to change the girl's pose so her entire arm is visible. Hrer pose makes sense anatomy wise but in terms of composition it looks a little cramped, her arm is barely visible because it's hidden behind her body and it's very foreshortened so it's not immediately obvious that it's her arm, there's just her face and body and then a hand. Or maybe keep that in mind for future covers of that sort.
And then the burn on the left on the last cover looks a little strane but maybe that's just me.
Besides that I don't have much to critique, I love your colouring and composition overall and the covers tell a story already so that's great.
100% honest opinion
I feel like I was already honest. 
This is my cover ^^ I'm planning on editing it soon so I might as well get some feedback on it first. 