Drawings sometimes invent themselves. I put them down the way I take a message for my wife, assuming the information is self-explanatory. For instance, I don't know what the arrow means in this one, but I'm sure it makes perfect sense to you. Happy is a very fungible word, useful in any context. I could have put it next to a drawing of a frowning man and you would assume I meant it ironically. Actually, I drew this in an ironic mood. Maybe the arrow implies irony. Maybe irony is in the ear of the beholder.