Cover artist extraordinary for DC Comics, et al
Challengers of the Unknown #15 in 1998 has the first pro Sook artwork. He worked for years at Dark Horse comics, and in 2001worked on The Spectre for DC Comics.
He has worked for WIldstorm and for Marvel Comics, though the bulk of his work has been at DC Comics.
His style is heavily stylized and reflects influences from other artists like Adam Hughes, but also famous poster artists like Alphonse Mucha.
The official Ryan Sook web site is here.
Ryan Sook Cover to Zatanna #2
Ryan Sook, Zatanna issue 2
See this Zatanna page by Ryan Sook larger here.
Sook art - Kamandi 2009
Superman is puzzled by his defeat in Frank Miller’s DKR
Ryan Sook Cover Zatanna Issue 1
Original Page March 2013