Headcanon that Gray is a really good artist. As an Ice Make mage, creation, imagination and proportion are all part of how Gray uses magic which in turn help his art technique. Gray is very good at pencil and pen sketches, but what he loves most to use is water colour or acrylics/oils. Gray’s whole apartment is littered with paintings and sketches of memories with the team.
Gray’s stripping habit translates to his art too so half the time he paints in the nude, or just a pair of boxers. Fight me.