Have a look at more art from this artist:

Mark Wulfgar - Xmas special 2012 - https://e-hentai.org/g/766539/d4413a52b0/
Mark Wulfgar - Xmas special 2011 - https://e-hentai.org/g/769011/3b3c733a41/

Mark Wulfgar - Xmas special 2003 (fixed quality) - https://e-hentai.org/g/613921/768e33685a/
Mark Wulfgar - Xmas special 2008 - https://e-hentai.org/g/613922/aad5046938/
Mark Wulfgar - Xmas special 2009 - https://e-hentai.org/g/613918/40d451e46c/
Mark Wulfgar - Saunainspectors - https://e-hentai.org/g/612178/8472e6362b/
Mark Wulfgar - Fighter Vulcan - https://e-hentai.org/g/612642/84f079f72f/

--- older art ---
Gross comic xmas special 2003 - https://e-hentai.org/g/88503/26f8f220e4/
Gross comic xmas special - https://e-hentai.org/g/88500/d2915cac39/
Gross comic Too Far 01 - https://e-hentai.org/g/88493/0d5c95e099/
Gross comic Too Far 02 - https://e-hentai.org/g/88495/51c48f9c75/
Gross comic Too Far 03 - https://e-hentai.org/g/88496/883e16c168/
Gross comic Too Far 04 - https://e-hentai.org/g/88497/1853352c14/
Gross comic Too Far 05 - https://e-hentai.org/g/88498/4496921373/
Gross comic last - https://e-hentai.org/g/88491/8eb35e091b/
Gross comic 1 - https://e-hentai.org/g/88477/561e7310f6/
Gross comic 02 - https://e-hentai.org/g/88479/6e6c9f307b/
Gross comic 03 -
Gross comic 04 - https://e-hentai.org/g/88482/e99edb73f6/
Gross comic 05 - https://e-hentai.org/g/88483/fb922c0e7e/
Gross comic 06 - https://e-hentai.org/g/88485/59ec0c81ab/
Gross comic 07 - https://e-hentai.org/g/88488/b7823ce9ff/
Gross comic 08 - https://e-hentai.org/g/88489/353078b6b5/
Gross comic 09 - https://e-hentai.org/g/88490/35e5f97716/