Well, first,, my name is Yixx
,,
Then, TDHX (abreviation for thedeathunterxx) is the main terrainer and he will decide most about that,, He will first shape the rough world (big parts, rivers, etc),, then he might give it to you, HFR or LoS, or he might do something himself first (specific terrain, so making it nice instead of rough world),,
Ask him when you can terrain,,
But i think, and i will also tell him, that he should shape the world fully before giving it to someone else, otherwise it will look somehow strange,,,