Niebla sculpted the fire sculptor's head for the TNG episode "Cost of Living" . For DS9, he sculpted the heads of both Tosk and Morn, his work on the latter earned him an Emmy Award in 1993 for the episode "Captive Pursuit" which he shared with Michael Westmore, Jill Rockow, Karen Westerfield, Gilbert A. Mosko, Dean Jones, Michael Key, and Craig Reardon.