画手 is read as がしゅ (gashu) and means painter.
がしゅ
gashu
がか
painter
がようし
drawing paper
かくする
to draw (a line)
が
image (TV, film, etc.)
かくいつ
uniformity
かく
stroke (of a kanji, etc.)
がぎょう
achievements as a painter
がだい
title of a painting
がふう
style of painting
じょうず
flattery
へた
imprudent
かいて
buyer