Blue statue
Step 1: Pour water on fire to reveal blue diamond.
Step 2: Jump potion to get Ruby near mausoleum.
Step 3: Build the green statue beside boulder. U'll need a chief to draw plans for this statue
Step 4: Craft blue glass and bring to statue.

Yellow statue
Step 1: Get three necklace piece from daily quest or cracks.
Step 2: Pan for gold and bring to anvil.
Step 3: Upgrade construction skills and draw some plans.
Step 4: Craft yellow glass.

Red statue
Step 1: Make soup.
Step 2: Build clothing hut... after tech upgrade crate of braid will appear... then flower will pollinate..bring them to tree.
Step 3: Need one child and adult to capture crab..crab will fix slippery rock.
Step 4: Craft red glass.