Resting in peace : Strictly One Layer Painting

Resting in peace : Strictly One Layer Painting
Just random exploration of this new habit of mine called "Strictly one layer painting"
Rules for me:
No "new layer" during process.
During the process file should be saved as jpeg not psd meaning No "Adjustment layers"
Single brush if possible.
No Undo(Coming in the future)
Exactly like traditional painting. except adjustments are allowed as long as they are not in a layer that can be edited later.
Painted everything in photoshop. Time takes less than 3 days.