Best I could get tonight, just too much going on around me, don't have the photo touch right now.
Since it's a bit topic of discussion and debate, here's my take now with in hand point of view.
WHY HOT TOYS JOKER'S RESEMBLANCE TO HEATH LEDGER IS MINIMAL
1. The black eye makeup and the red mouth makeup do not resemble the style of Heath's makeup, be it promo images or the film, the black wasn't faded like the figure, and the red was much thicker and sloppier.
2. Mouth scars are too undefined. Having Les' Joker, i can see and feel the difference in the scars between DCD's scan and the HT sculpt. HT's has a face with carvings made into it, but the damaged tissue doesn't puff out. Leger's prosthetics added mass to his cheeks, almost like his skin was boils from a burn or something, quite pronounced, HT doesn't have that going.
3. Facial emotional expression isn't representative of Heath's Joker.
4. The whites of the eyes are about 50% grey, looks like they painted them over the black makeup with a lith white so the black comes through making them grey. Heath's eyes were like Jack Sparrow, you rarely saw color in them and because of the makeup, the white was very strong. The HT eyes are more subdued.
5. Hair really only resembles some promo images, and primarily the scene with Gamble and the "aggressive expansion", so it's not bad or wrong, but not the right style to represent it from the movie as a whole.
6. Hair color; where most of the time in the movie, Heath's hair was a natural color at his scalp and faded to really green at the tips, this hair is painted like brown hair with green highlights, doesn't quite have the same effect.
So there, to me, is why likeness is an issue. I believe that the sculpt was meant to and probably is 80-90% on to what Heath would look like making that face, but due to the factors above, that becomes hard to see. Given the right repaint, I think this portrait can be made to have a pretty good resemblance to Ledger's Joker, not blatant, but much closer than the factory effort.
Having said that, I'm not bashing the sculpt or the paint apps or the figure, I love it, I'm happy with my money spent on it and I think it's one of Hot Toys better overall figure efforst simply from a production view, I just wanted to give my take on the Ledger likeness issue as it comes up a lot and I have strong opinions.