I can't really offer any constructive criticism, not really. It's a different style from how I would write, if only a little bit, but it's over all a style that I approve of. My only suggestion would be to tone down speech some during... eh... intimate moments, that's only because I prefer to keep my writing more realistic and in reality, people tend not to talk as much as that. Not unheard of, mind you, and everyone is different - but I mostly write based off of my own experiences, and in my experience speech isn't the thing on people's minds when they're in the shower together usually.
That being said, that I write based off of my own experiences generally, that's why I can't give too much constructive criticism outside of general mechanics. My writing is too personal in style for most other people.
As for an exploration story, how do you mean exactly? If you're talking about something like that short bit you wrote, I don't think I can do that for Ezeckial. The vast majority of that character's life was a cycle in Hell, and so I'd only be able to maybe write that cycle out in more detail. Before that, he was free on the earth with Lucifer and the gang and before that in Heaven. History-wise, this character is rather simplistic.