Step #1: Sketch guidelines
Step #2: Start with face sketch
Step #3: Sketch hair pattern
Step #4: Sketch the rest of the guidelines
Step #5: Finalize lineart
Step #6: Add colors
Step #7: Add shadow, highlights, etc.
Step #8: Proceed to polishing
Step #9: Draw background guidelines (dimension)
Step #10: Sketch background
Step #11: Finalize background lineart (add leaves)
Step #12: Add color and necessary shadows for background
Step #13: (optional) Edit with other software/apps
This would’ve been way harder if it was traditional, but drawing with graphic tablets is similar. The easier part in digital is you get to add layers to avoid ruining your base lines. I hope this helped to you who want to try and draw. This works in any position.