Student or Learner
Are these sentences correct?
It's much more of a freer translation (than yours).
I still have to take the Advanced and the Proficiency ones.
It's much more of a free translation [than yours]. (I think this sounds a little unnatural.)
#2 As long as you have already established what the "ones" are in a previous sentence (exams or tests, I assume) then your sentence is fine.