Shutter pieces are always difficult to photograph, and I understand they are a devil to paint too. There is always quite a lot of glare from the curves on each panel of the shutter, and they are usually best seen with the naked eye which somehow accommodated for the glare and gives you a better image.
The chimp here is a beautiful creation by the versatile Kin Dose. He had a piece on this exact same shutter before, but it had recently been vandalised. I am a big fan of his work, and he produces it infrequently enough to always make you want more.