Can anyone make out this artists signature?

We had a couple of artists proof hand signed prints come into the charity shop I volunteer at and I also happened to buy one as I liked the picture, but neither myself nor anyone else could sufficently make the signature out... any ideas?

 

Hmmm, not easy!

M is the initial, and then Kirsehon? At first I thought it was "schon" at the end, but that second letter definitely looks like an "e" in the second one...

 

I would say: "Kirschon"