Apparently, the crew fell over laughing during the recording, so orders from upstairs prompted the effects team to add additional bits, some pincers, I believe, to break up the general look of male anatomy. It didn't really help.
Koura replaced his turban with a helmet of hair. I think you'd like classic era Doctor Who. It's at times tatty and desperately overplayed to distract from the budgetary limitations, but the stories are mostly excellent and there's no mistaking the enthusiasm from everyone involved.