Phil said it all best. And I like how there is a very small start of some sort of water formation in the center of the sperm, promising that future life. Also this is a very graphically pleasing shot with your composition.
Your graphic title understates the case here, Tim -- it is more than just sperm-like -- it is indeed a metaphorically massive sperm impregnating the barren landscape, already spreading its message of future life.
