What I do

Washes and bending the tail!

Bringing in the light
Building up the contrasts
I juggle a little more with the upper portion of the painting but still haven't committed myself to any definite course of action here. More Sienna in the mix and much less Ultramarine. I finally get round to bending the tail and sketch in its position over the back feet.
I use neat Yellow Ochre to indicate the fall of light towards the front legs and head of the leopard. I also put a series of washes over the whole body and add a sienna wash around the head to begin to work out where light and shadows fall.