make the dick elastic, it's not a plastic rod. it changes shape when the lips squeeze it. Also, tits do not stay in the same shape when they are in a horizontal position. They tend to 'flow' down. because of GRAVITY! The skin looks good, but too perfect. The dynamics are OK. The head looks good; the facial gestures are natural!!! ALso, a dick cannot be dry when it is able to enter a whole, it should be wet. Asshole textures are really good. Go 4K!
Overall, good quality, much better that many other mechanical clips the other artists post.