Image 1: Make this.
Image 2: Make these.
Image 3: Add another yellow connector with a white rod to each as shown.
Image 4: Add white rods with tan clips as shown.
Image 5: Add light gray connectors.
Image 6: Add gray connectors.
Image 7: Add green connectors.
Image 8: Make these.
Image 9: Connect them as shown. Be sure they look like this and are not placed on the wrong ones.
Images 10-11: Connect the parts you've made so it looks like this.