Feet!

The thing I appreciate the most here is that the picture is somewhat different from your previous work, while still telling a lot about your style and the uniqueness of your trait.
You somewhat managed to grab the essence of the subject and portray it with just a few, essential lines, creating something extremely realistic yet still cartoonish, and demonstrating your knowledge of anatomy as well as your ability to "summarize" the most important features.
The colors are perfect and give even more life to this pair of feet, so expressive and vivid.
I'd say your will to study and experiment new techniques to get better will get you far, as this is already a great step forward compared to your previous creations. This seems like an evolution of your actual style, and I would love to see a full work made with the same trait and coloring.

I hope I was exaustive enough... I can't wait to see more from you!

M.