Not Paps but I suppose I could give some constructive criticism as has been taught to me during our last semester's art feedback sessions
The legs are quite well done in that they are anatomically correct from what I can see and certainly not wet noodles, the knee and the rest of the individual parts are easily distinguishable and drawn in a way that looks natural and consistent for Alunya's body type, good work on that.
Overall the piece could use some more shading on the characters (right now its inconsistent in that only the guillotine is shaded while the characters are not), I'd first recommend figuring out where your main light source is and starting the shading work from there. Her right forearm seems to bend pretty awkwardly giving it a really rubbery feel, forearms are not supposed to really... bend unless you're really going for a wacky cartoon feel where the whole arm is just the equivalent of one long-ass gummy worm. Just a suggestion, but maybe if you straightened the forearm and bent the elbow a bit more along with the wrist it would look more natural.
Oh yeah, and I like that nice little detail with skirt being lifted by the tail, it really helps distinguish that the tail is indeed a part of her body with its own bones and muscle that make it possible for it to move and not just a buttplug that's been shoved up her arse as part of a cosplay.
I won't give it a grading since I'm not a certified teacher or art critic, I'll just say its a good start and you should keep working on it. If you need references or study material I'll be happy to provide.