Its Rob Von Ramm's https://robvonramm.com/ birthday tomorrow ! 

He will be turning the grand old age of 34 - woohoo!

I have been working on this image on the sly as we live together and it is obviously a secret illustration haha.  He is the grumpy sailor, there's a mermaid temptress and I am the little fish eating Otter wishing him a 'A PEA BIRFDAY'.  I think that I will give him the Black & White version as he is monochrome-boy.