My question is, what next? What should I work on?
If you're not interested in tricks, push yourself with the terrain. You
say you're not good at moguls - ride them! You say you enjoy blue-black
terrain - get yourself on something harder! Not good at trees, either -
ride some more of them! Push yourself out of your comfort zone. Are
you crashing at all? No crash, no learn.
Or are you looking for technical tips on overcoming these things? If so
you might have to get a little more specific.