Nice! Love his coloring. I'm going to say it, but I'm not a big fan of the true blue nosy bes (as pretty as they are - solid baby/powder blue) I like to see some color patterns. But when it comes to Nosy mitsio, that solid yellowish green with the white stripe just gets me.
Chris, later on today, I will post some pictures of my Nosy be male. He is about 4.5 months old and is the "spitting image" of your Nosy be. He has lots of red speckling around his eye turrets and lateral flanks.