Holy cow, Bob! And in 1/9th scale, too! You've got the facial expression and the body pose just perfect. You may want to check the height of Winnie's hat. May be an optical illusion or something, but it looks too tall. The brim and hat size on his head look right, just the height from brim to crown. Compare it with the first photo you posted and with the height of his head. My 2 centavos...and I feel very strange indeed putting it in after all the excellent advice you've given me.
Next maybe you should do Churchill, Roosevelt and Stalin at the Teheran conference. I'm thinking of the photo of the trio sitting in chairs on a patio. At that moment, the three most powerful men in the world, making "back room" deals that would lock up the fate of millions for years into the future. In my humble opinion, the Cold War started right there, although some would say it started in 1918 in Archangel and Murmansk. Excuse the digression...
All the best,
Dan