Sea Creatures Card Seal and pup

This image is from my linocut design of a seal with its pup.  These are ‘Common Seals’ which I see when sailing in Strangford Lough, they are curious, particularly if I have my dog on board and would watch us like this. 
In my making process I carve the design out of linoleum or Japanese vinyl, roll it up with ink and hand print it.  Card size 135 x 135mm, white envelope 140 x 140mm, cello wrapped for protection.  Blank for your message and printed in the U.K.