Given the nature of this I think it works best in auction format!
Sketch/Flats/Cel/Painterly/Lineless is shown.

With this auction, you will receive a single commission in several different versions and levels of completion, not necessarily limited to the ones you see here. To see the different kinds of examples, check out my commission info tab! http://www.furaffinity.net/commissions/klippy/ I do not draw NSFW.

Starting bid is $15! This bid will get you exactly the example- five different versions of an icon.
Minimum bid increase is $5.
Stretch goals include:

$25- Complete icon comparison
$35- Complete bust comparison + simple background
$55- Full-body with shown 5 versions
$70- Complete full-body
$110- Complete full-body + detailed background

What can be done under a certain price is negotiable, but this is a good baseline!
Oh my gosh 70 already :o If it gets high enough I'll have to add something new... maybe an extra character?

The auction ends DECEMBER 2ND, at 7 PM EST. To avoid bid-sniping, there will be a 30 minute buffer between the last bid. This set of commissions will be done in time for Christmas!

"Complete" comparison, reached at 25, 35 and 70, includes the following takes:
-Sketch
-Coloured sketch
-Shaded sketch
-Lineart
-Monochrome
-Flats
-Simple shades
-Cel
-Painterly
-Lineless
-Binary flats
-Binary cel
-Chibi
-Dinkle