Resized to 83% of original (view original)
Artist's commentary
I have trouble painting this because it's wriggling around.
From Fuyuinu_(to10hiki)'s tweet (1:58 AM - 13 May 2014 [JST])
Fuyuinu_(to10hiki) is Furuike_Kawazu_(utsura_utsuro)'s sub account.