Transmapped hair is a modelling task and is probably more popular than dynamic(strand) hair , its also less ressource intensive.

Lighting you can learn from photography books. You just have to be aware that some real world tuff does not happen in poser, like light bouncing off walls and illuminating stuff from another angle.

Its all very doable in Daz studio or Poser.  The poser lighting , dynamic cloth and maybe hair are a definate plus, but you should be able to do excellent work in Studio.

Perhaps post a picture and ask for critique and see what happens. It can be brutal but constructive critisism may be a big help.