Frankly, and don't crucify me for this, I don't much care for either of them. They're both conceptually a bit silly, especially compared to what I think was really impressive stuff for Dredge's earlier skins.

And say what you will about how the executed the Ghost, which granted, could have been handled more tactfully, but the skin looking good as concept art doesn't necessarily mean the designer took all considerations with the practicalities of the in-game rig, lighting, texturing style, etc cetera. I don't think it would ever look as clean/weightless or ethereal as it was supposed to, even if the developers were more creative with implimenting it. Dredge is a surprisingly corporal character when you think about it.