*Jealous of that beautiful signature ><*
That is kind hard of a stance to draw was it? I don't know what I see is right, but I'm just gonna say it out and if it turns out wrong Please correct me, We are all learning
The right upper leg seems too long to me.
The eyebrow on the right side stick out. So there should also be a little stick out of the right side too.
I don't know about the tail, but some thing seems off. I think its the red and blue(which was the upper and lower part?) wasn't quite right.
I like your use of shading though. There are detail shading like the limb shading that you told me and also some obvious gradient
. This helps me as a reference for my next scans.