Whether she is Venus, Sister Ray (a Velvet Underground character), or Penthesilea, the Amazonian Queen, Danish artist Peter Linde Busk’s recurring female character has a jittery, incomplete quality owing to her construction from cast-off and fragmentary materials. Here, Smalti, natural stones, ceramics and more compose a faceless, imperfect creature. (At Derek Eller Gallery on the Lower East Side through June 19th).