Frank Frazetta was an American fantasy and science fiction artist, noted for work in comic books, paperback book covers, paintings, posters, LP record album covers and other media. He died in 2010.
Frazetta was inducted into the comic book industry’s Will Eisner Comic Book Hall of Fame in 1995 and the Jack Kirby Hall of Fame in 1999.
Frazetta has influenced many artists within the genres of fantasy and science fiction. Yusuke Nakano, a lead artist for Nintendo’s Legend of Zelda series, cites Frazetta as an influence (A series I grew up with and still play today). The creator of He-Man, Roger Sweet, states that he was influenced by Frazetta’s work. Fantasy artist and musician Joseph Vargo cites Frazetta as a primary influence, and his art calendars since 1998 mark Frazetta’s birthday. Chris Perna, art director at Epic Games, stated in an interview in 2011 that Frazetta was one of his influences.
You can see that Reynan takes his inspiration from here. Though different, the way, the characters are posed, their muscles drawn and the shading is very similar.