Question: What artist produced the graphics in Big Numbers graphic novel and Marvel Comics, "The New Mutants"?
Context: Wallflower (Laurie Collins) is a fictional character appearing in comic books published by Marvel Comics.  She is a member of the student body of the Xavier Institute and a member of the New Mutants training squad therein.  After the events of M-Day transpired, she was one of a handful of mutants to keep her powers.  She first appeared in "New Mutants", vol.  2 #2 and died in "New X-Men", vol.  2 #25. "Child's Play" is a 1994 Marvel Comics crossover storyline featuring the New Warriors, X-Force, and the Upstarts.  It is also the first time Karma reunites with the New Mutants since she left the team in "New Mutants" #54 (1987). Cannonball (Samuel Zachary Guthrie) is a fictional superhero appearing in American comic books published by Marvel Comics, commonly in association with the X-Men.  Created by writer Chris Claremont and artist Bob McLeod, Cannonball first appeared in "Marvel Graphic Novel" #4: "The New Mutants" (1982). "Days of Future Present" is a storyline published by Marvel Comics, appearing in the 1990 annuals of "Fantastic Four", "X-Factor", "New Mutants" and "Uncanny X-Men".  Centered on the appearance of an adult version of the powerful mutant Franklin Richards, it is a sequel to the popular "Days of Future Past" story arc from "Uncanny X-Men" #141–142 (January–February 1981).  The storyline unites the Fantastic Four, X-Factor, the New Mutants, and the remnants of a then-disbanded X-Men against a common foe from a dystopian alternate future.  It features the first appearance of Gambit, and the first encounter between Jean Grey and her alternate future daughter Rachel Summers.  Cyclops' baby son Nathan Christopher Charles Summers and the full-grown mutant antihero Cable are depicted in this story as two separate individuals, although they are subsequently revealed to be one and the same. Magma (real name Amara Juliana Olivians Aquilla; also known as Alison Crestmere) is a fictional superhero in the Marvel Comics series "New Mutants", also associated with various "X-Men"-related comics.  Like all the other New Mutants, Amara originally appeared as a young mutant aspiring to become a hero.  Amara, a mutant with the ability to generate lava, joins the New Mutants and becomes Magma. Sofia Mantega, also known as Renascence and formerly known as Wind Dancer, is a fictional character, a former mutant appearing in comic books published by Marvel Comics.  One of the student body in the Xavier Institute, she is a member of the New Mutants squad therein.  Her first appearance was in "New Mutants", vol.  2 #1.  At the beginning of "New Mutants", vol.  2, she is 16 years old. Big Numbers is an unfinished graphic novel by writer Alan Moore and artist Bill Sienkiewicz.  In 1990 Moore's short-lived imprint Mad Love published two of the planned twelve issues; the series was picked up by Kevin Eastman's Tundra Publishing, but the completed third issue did not print, and the remaining issues, whose artwork was to be handled by Sienkiewicz's assistant Al Columbia, were never finished. New Mutants is an upcoming American superhero film based on the Marvel Comics superhero team of the same name, distributed by 20th Century Fox.  It is intended to be the eleventh installment in the "X-Men" film series.  The film is being directed by Josh Boone from a screenplay by himself and Knate Lee, and stars Anya Taylor-Joy, Maisie Williams, Charlie Heaton, Henry Zaga, Blu Hunt, and Alice Braga.  In "New Mutants", a group of young mutants held in a secret facility fight to save themselves. Boleslav William Felix Robert Sienkiewicz ( ; born May 3, 1958), better known as Bill Sienkiewicz, is an Eisner Award-winning American artist who produces comic book art, primarily for Marvel Comics' "The New Mutants" and "".  Sienkiewicz often utilizes oil painting, collage, mimeograph, and other forms generally uncommon in comic books. Deadpool (Wade Winston Wilson) is a fictional antihero appearing in American comic books published by Marvel Comics.  Created by artist/writer Rob Liefeld and writer Fabian Nicieza, the character first appeared in "The New Mutants" #98 (cover-dated February 1991).  Initially Deadpool was depicted as a supervillain when he made his first appearance in "The New Mutants" and later in issues of "X-Force", but later evolved into his more recognizable antiheroic persona.  Deadpool, whose real name is Wade Wilson, is a disfigured and mentally unstable mercenary with the superhuman ability of an accelerated healing factor and physical prowess.  The character is known as the "Merc with a Mouth" because of his talkative nature and tendency to break the fourth wall, which is used by writers for humorous effect and running gags.
Answer: Bill Sienkiewicz