Cute!
And so is this art work ^.^
Constructive crit you say? ALRIGHTY THEN :-)
The curves are flawless , the length of the hands in comparison to the waist and body is dead on accurate , I'd probably make the tits slightly bigger though ,but thats just me.
overall cartoon anatomy = Perfect
The coloring , highlights and shades are just a delight , an orgasm for the eyes. And even though i love the background (i do) i'd probably would of invested abit more sweat into it.
All and all , 110! +10 coz you're just so adorable i wanna eat you :P