studio in art :: reference for sculpture

here are images of the 3 artists we are referencing for our new sculpture project, as well as an image of my exemplar.
look below each picture for more links on each artist.

frank gehry
wikipedia
new york times
artcyclopedia

frank stella
wikipedia
artcyclopedia
artnet (works for sale)

pablo picasso
wikipedia
abc gallery
artcyclopedia

my example