Impressionist harmonies are fun to improvise on. Try giving yourself a B bass, and improvising on the black keys in an impressionist style (complete chords — 9th and 13th harmony). Then swich the bass to E and do the same thing. Back and forth: awesome.
After repeating that a couple times I closed it off with the super nifty cadence G#, C#m7, D#7.
uhm,
let me try!
Trieu