@cinderys
Hey! Those are pretty awesome thumbnails!
If you ask me, I'm getting a lot of Diablo 3 vibes from those 
, I really like one on the top right, seems very unique aside from the rest, not having wings, I also like 2 one on the bottom, which looks like spider (you really should put numbers on those xD), gives me an idea of spider lady who can spawn like, golden spider webs that shine and stuff
Of course its up to you, but I personally would try to avoid generic idea of angels for light etc., you have some unique ideas in here, I would suggest you to explore them further.
So far so good! I want to see more of your ideas, gonna wait for more updates!
Stay cool, and good luck! 
