It still annoys the heck out of me that so many people keep spelling the name wrong. It’s supposed to be spelled Niflheim. Some of our stupid Americans can’t translate worth a darn and it always seems to be Norse names that suffer. XD Like Verdandy becoming Belldandy in Oh, My Goddess. >.<
But, I digress. Anyway, your rendition is very cool; your usage of color and lighting are really well done, I especially like the glow effects. The only thing is, I don’t know why but for some reason that bottom right corner where the pipe and glow are just looks a little weird, it throws my eye off. I think it’s the hash-like marks, I think they might be grass or something? They look out of place and I can’t really identify what they’re supposed to be. Otherwise everything else is really good. I also love the “bright sunny day over a gloomy dead area” ambiance; having the sun shining in the foreground mixed with dismal fog receding into the background.