Hey folks, this one's from a friend's comic -- Zorgonox's Depository of Earth Sundries which can be found at http://zorgnox.thecomicseries.com/ and on Twitter

Rick, Rose, and Doc can be located near the center of the image, three rows from the top.

Also present are cameos of characters from other comics. A full list of which can be found Here

All characters belong to their owners, the image and Zorgonox's Depository of Earth Sundries belong to Lord Myk