Would be awesome if you went for something more adventurous you know. There's too many graphics artists growing gray in their day jobs and stop going after the motherload of beautiful things in the back of their heads.
While saying this i realize I haven't finished anything big after starting my job, so blergh, i just made myself feel sick.
So currently it's a guy with a bland gray shirt and bland darker gray pants all aligned to horizontal and vertical axises without exploring things limited to perfect angles. The face sort of scares me though, so that's good

It's like you're turning into a stone golem, yet you smile while at it... but the smile is sort of smug and empty... haunts me to no end.
Allrighty, so lets use that to our advantage. How about if he's shoveling a large pile, or better yet, a plane that is his life's work into a kiln whilst digging a grave for himself? That's at least something i could relate to, har har
About the colors. The areas lit by the fire could go way warmer. Try and set the mood for the piece by making it really warm all around with the shadows and far bg going colder, but not all the way to clear blue.
some refs
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