First two I would say add some light to the background (lightning would be ideal, or a flame/fire of some kind), atm they're WAY too dark, imo.
Final one, I like the left side, not fond of the middle and hate the right side, again it's too dark - Change the text background to white, that will help a lot and then add a small amount of colour to the lower right corner (where the level display/Clysian is, is two ideal spots).
Hope that helps.
Edit: Need to remove/move the wing that is covering the lower health value up, looks silly with 90% of the numbers on the wing and a tiny bit off (depending on level, you'll have more/less on the wing).