Optical landing zone greeting illusion

I was wondering what you were building there when i saw the first few shrubs being lined up the other day.

But no i don't see anything hidden... Is there a message or is it just a design? I've been staring at it for five minutes now like I'm going to discover a hidden image! Lol

Google "stereogram". I love these but can't imagine how to make one. If you pulled that off you are amazing