-For joints, I like to use lines to signify bending and separation of the leg segments, otherwise the whole appendage looks like one solid object. If you have to, make different appendages for different bends.
Remember this? note the line at the knee between the thigh and lower leg. Also note how each toe is separated by a line. That probably won't be immediately useful, but it could eventually.
-The Princess needs to be tied to something. Let's be honest, you can't just tie someone's arms behind their back, gag 'em, and expect them to stay in one place for like...hours. :smalltongue:
Here, I would think about what would keep her in place. Tying her legs up is reasonable because it can be concealed by her skirt (Hence the crying) and/or being off-panel, but even then she can just hop around. I would recommend tying her to a bedpost. Because of her royalty status, in all likelihood she would have one of those beds with the canopy covers, hence tall poles in which to be tied to.
-Gag needs to go further into the mouth a little bit.
-Lengthen Bowser's nose slightly
-Remember, we should NOT be able to see any orange scales on Bowser's torso.
-Lenthen Bowser's arms a bit, cuz otherwise he's a T-Rex in a shell. :smalltongue: