Puzzle 18

Puzzle 18 is one of the mysteries in Islands of Insight.
==Hints==
*The behemoth possesses geometric characteristics.
*The rhombus in Verdant Glen is pertinent.
==Solution==
Discover the massive rhombus within Verdant Glen. Ascend to a small ledge about a quarter of the way from the bottom. There, find a puzzle box and resolve it by mimicking the coloring of differently shaped regions from a corresponding puzzle chain.