Flashbacks- Sir Arthur

Goodness... so after 3 1/2 hours spent on sketching this on paper, I realized that outlining this in pen would've killed the paper, & colouring it would've been overkill. I decided to finish the drawing digitally to keep the quality. Sir Arthur looks like a simple character to draw, but man are looks deceiving! I wonder if I should make this a series of drawings & draw the other Star Warriors like this, in flashbacks? I would guess the flashbacks are Meta Knight's.
Total time: 8 1/2 hours
My original sketch:
 
Sir Arthur (c) Nintendo & Hal Laboratory inc.
Artwork by myself.