Couple of suggestions. Applaud the effort and your desire to improve.
1. Stay away from true white. Use a different color like the pallest color so your highest highlight can be pure white.
2. I noticed on the back - though you have shading and highlights - some of them are in the wrong places - you actually have shading where some higher color would be. One way to start looking at your figures different is prime in black, then at a "sun" angle" spray a misting of white primer - showing you where highlights should be - just a suggestion.
3. You need additional transition colors in your blending - you can almost see the line between your base and shadows - so think about a shadow, shadow + base, base, highlight, and highest highlight (very sparingly - to make it pop) to get better transitions in your colors
4. Also remember that the bottom of a cloak should be darker than the top of the coat so there should be color differences from bottom to top as well as simply shadows in folds and highlights.
5. Before you put any paint on - make sure that when you add the primer - that there are no dust, specks, trash on the figure. Nothing ruins a good paint job like trash on the figure. If you see it with the primer - fix it then, prior to painting.
6. As stated by others, your paints appear to be a little 'heavy" Better to do four or five thin layers than one heavy coat
Hope some of these might help