Feels avian. Texture provided by a pointy & sturdy seed pod. Feathers quills shaped the eyes & nose.
In late July, we had our hands on one giganormous lens, the Sony 400 2.8 GM! One of the 8 units available in Asia Pacific, we had only a week with this beast. :( Lightweight...its the lightest 400 2.8 on the market right now. In fact, I was going handheld everytime we brought the lens out. Thoroughly enjoyed the walks with the lens attached to either an a9 or a7Riii. A tripod no doubt would have lessened the joy of it all.
One more plus from the design was the smart move to shift heavier lens elements to the rear of the lens. This makes it even easier to handhold for long periods with the smaller bodies.