Now, a few things about posing Kermit that I discovered as I went along with him:
First, the head has to be pulled all the way up on the body of the poser, then jutted forward some to give him a lean-forward, being puppeteered look.
Illustration:
http://pic4.picturetrail.com/VOL742/3120815/6345768/298259842.jpg
The Kermit smile is by keeping the top and bottom palettes of the mouth straight, but the back part of the top pallette must be pinched up ever so slightly. The top pallatte must be kept straight so you can't see it in a straight-on photo, and the bottom pallette is open, but not all the way as wide that it touches the body.
The body poses have to look as if they are being positioned by putting a hand and arm in the poser and arm rods are posing the arms and legs.
The fingers have to keep a straight view and can't suddenly look like the frog has been stricken with arthritis. And the collar has to be posed straight down and against the body.
Another small detail is that the hands, when waving, have to be facing palm-out (so the thumbs point toward the body), and when he's sitting down, unless the bottoms of his feet are touching something, point his feet downard.