VARIANT 1: No cock (or tucked - either way, it can't be seen). It'd get in the way of showing off the lingerie!
VARIANT 2: Just changes to her breasts (i.e., larger), nipples, cock (i.e., the urethra is slightly 'parted', implying sounding or the like), and the addition of milk (I provide that image less for the quantity than an example of the fluid physics - thickness, weight, etcetera).
Having her nipples either leak or spray milk is good.~
There are a few ways this could be handled…ideally the idea is to give a sense of progression - less composed, more needy, but still able to keep a thin veneer of ladylike composure.
If none of that works, my suggestion is something like this.
Head, Eyes, Mouth: Again, cf. the Mami/Mado piece.
The same goes for her nails, cock, nipples, and so on. (Feel free to include the earrings- as well as the anklet and toe ring if you'd like, but they're not critical.)
Effects
SFX: A few orange, yellow, and red hearts fluttering up from beside her head.
VARIANT 2: More hearts than before.
Other
Clothing: Initially none, except for her soul gem on the left (her right) of her head. (I would like the mounting/housing for the actual gem to look like how it's drawn here.)