I wouldn't crop; you could make a great difference by tweaking very sliightly in Curves. I love the overall tonality; it doesn't need absolute blacks and whites; take it from a master - no, not me I'm afraid - HC-B who specifically bade his printers to avoid those two end points. If sometime you look into my later Glimpsed Parallels galleries you will see that I am rather fond of apparent gloomy which, in reality, isn't gloomy at all, but has a sort of portent about it. As with your unicornic(?) phantasmagoria (it would indeed have made an interesting series).
Rob