Loomis is awesome. I'm a huge fan of comic artist Alex Ross and Loomis was a major influence on his style (which is very plain to see).
what a wonderful art my bro, it's incredible how the artist catch the real essence of the character, and put it in those pictures.
His art style totally reminds me of the ones seen in "Noir fiction" or "Hardboiled" literature that I once read back then, due to its realistic and vintage way of portraying the characters. But after looking at his other works, you can really say that he is a versatile artist, suitable for beginners and pros to learn from!