MCU Phase 1 villains (drawing)

Traditional drawing of all villains / antagonists (main villains, "side villains", indicated villains,...) of the Marvel Cinematic Universe / MCU Phase 1 (2008-2012) in one A4 drawing. I included (Jotun) Loki 2x, because he was the main villain in two movies. I'm going to draw Phase 2 as well (but not in the next weeks/months).
At the beginning I was afraid that I would mess up one of these small faces, but now I'm very happy with the result (my favourite part: the Avengers villains on the right side)! That's also the first time that I've put so many different faces on one sheet of paper (my record so far: 2 faces on A4 and 6 faces on a sketch card).

References (production/promo still = ¹, poster = ², screencap = ³):
Iron Man (2008) - Obadiah Stane¹ / Iron Monger¹ (Jeff Bridges), Raza³ (Faran Tahir)
The Incredible Hulk (2008) - Emil Blonsky / Abomination³ (Tim Roth), Thaddeus "Thunderbolt" Ross³ (William Hurt), Samuel Sterns³ / Leader (Tim Blake Nelson)
Iron Man 2 (2010) - Ivan Vanko / Whiplash³ (Mickey Rourke), Justin Hammer³ (Sam Rockwell)
Thor (2011) - Loki³ (Tom Hiddleston), Laufey³ (Colm Feore), Destroyer³
Captain America (2011) - Johann Schmidt / Red Skull³ (Hugo Weaving), Arnim Zola³ (Toby Jones)
Marvel's The Avengers (2012) - Loki² (Tom Hiddleston), The Other³ (Alexis Denisof), Thanos³ (Damion Poitier)

Tools: Paper DIN A4 190g/m²; Faber-Castell Polychromos artists' colour pencils, Copic Ciao and Sketch marker, Copic Multiliner 0.05 & SP 0.03, uni-ball Signo pigment ink um-153 white; time: >50 hours

Please don't upload my pictures somewhere else without my permission. Don't infringe copyright!

Here are some other traditional Marvel drawings: