Crab Cake about 5 years ago Author's tweet says that the red sub belongs to Moriarty from Sherlock Hound.
BrokenEagle98 about 3 years ago MD5 mismatch of https://pbs.twimg.com/media/B8SDTDTCIAM0Lsh.jpg:orig Source MD5 Hash Type Dimensions Filesize Danbooru 885e4d043f25fb83a91f9b1b561b05fc jpg (1023, 724) 91913 Twitter e66fc0a6e4a820eaa86fb21f2f5cb866 jpg (1770, 1253) 195747