HissTank member Atomichermit posted images from the G.I. Joe Battleground game he worked on while at DeNA. He designed 99% of all the artwork cards from the game. Read his own words below:
I drew around 115+ characters, and designed around 200+ more.
One of my main jobs was line artist, my line work had changed more than over the course of the time I was on the title, while earlier it was tight and a bit graphic, as time progressed, it became looser and a bit sketchy. Hence the variation in the style of line-work between the characters.
He also provided a link to his artwork: http://joshiart.blogspot.ca
Click the link below to see more of these wonderful sketches and post your thoughts.