Developing a slick illustration workflow

[Artloader]

One of my goals over the next few months is to develop a slick illustration workflow so that I can reliably and rapidly produce quality artwork (relative to my own skill level of course).

I was wondering if any of you good folk had any thoughts on workflow?

Anyway here's my first attempt:

1. Search for inspiration.
   
2. Do thumbnails to brainstorm compositions.
   
3. Select the best composition.
   
4. Gather references related to the selected composition.
   
5. Do art studies related to the selected composition.
   
6. Do the gesture drawing.
   
7. Do the construction drawing.
   
8. Paint block-in of big shadows.
   
9. Paint block-in of big full lights.
   
10. Paint block-in of big mid tones.
    
11. Add the darkest darks.
    
12. Add the highlights.
    
13. Blend.
    
14. Paint details.
    
15. Take a break.
    
16. Final finishing details.
    

I'd really appreciate any thoughts, thanks in advance :).