Please compare this image with the very first one that you posted. This image has the
correct perspective and a
very clean presentation, but it includes
no details on the fabric or shading. The anatomy is also stylized (tiny ankles, short forearms, etc). The first image includes
anatomy and
lighting/shading which would fit well into SDT, but
none of the elements are shown in profile. We need an image which
combines the merits of these two.
I could trace the hood in thirty seconds, but that's
not a good thing. We'd be left with a featureless white shape which is recognizable as a hood only because of its
location. There are no creases or pleats to visually identify it as
cloth, and it would be silly for a modder to spend extra time adding fabric-animation details to such a simple piece of artwork.
The hood shape shown here also
completely covers the face, which is usually undesirable. During a fellatio scene, the male character's penis would simply vanish into the hood area. Any actual
penetration would need to be filled in by the viewer's imagination.
Hoods in SDT tend to be deliberately cropped down (or pulled back) so that they
don't block the player's vision. Examples:
1 2 3. The implicit goal of an SDT mod is usually
"I want to see <character> sucking dick" rather than
"I want to see a perfectly accurate rendition of <character> within a duck-sucking game." We tend to sacrifice fidelity for the sake of gameplay.
If you want to
maintain fidelity, then you could modify your request to ask for a
folded-back version of the hood. If you want to keep the hood up and accept the visibility problems, then that's okay. If you want a hood-up-but-pulled-back version then just say so. But in any case: you'll need to keep searching until you find at least one
high-quality reference image which shows your preferred version of the hood, with the correct side-view perspective and a reasonable amount of detail.