Hi the sculpt is looking great..
The lower teeth do look a little off center though which is making the lower arch look a bit over crowded and unnatural looking.
I seem to remember an interview with Rob Bottin in either a Fangoria Cinefantastic or Famous Monsters where you can see he used dental teeth in the sculpt, I may be wrong but I'm a Dental technician so these things seem to stick out to me but maybe its like that in og design ?
I am guessing you will have to reinforce the legs to take the weight.
Looking forward to reading about your progress and future photos.