If you can't sculpt a generic head then start with skull ,basic head and feature studies When you can sculpt a generic head then you have to work on your observational skills[aka getting as close as you can to actually reference start with simple things like fruit/veg then face profile... ] and then finally you can try…
i wouldn't recommend to pay for a $600 course from an expert that only has 15 hours of video for a task that requires hundreds of hours per asset. That seems more like a course that may be helpful if you are already pretty far along and are looking for a push to get to the next level that you can't get to on your own. If…