A design for Bartleby from Sonic Underground based on more of ShinyMisty's fanon rambles. Something about "Bart' staying with Sleet, swaying him to good".
Lot of symbolism in his look. The roboticized arm was a warning by Robotnik. Angelic blues (that compliment Sleet's devilish reds), & after his harrowing experiences & stripped from his aristocratic life, he adapts better than you'd think. Stable & enlightened from such change. The opposite of Dingo in every way. It is his newfound valiant and empathetic heart that steers Sleet to the light... and back to Dingo.