it's isometric as in isometric projecction. (unless you find another interpretation ig)
So if I'm understanding it right image 3 and 4 would be correct as if isometric in a simple form for me is 3D where in the 0 , 1 and 2 are one dimensional yet with the power of art bringing to life a still picture making you believe it isn't a figment of one's imagination that it in fact is real. I am so impressed by art and can't wait to see everyone's work and thank you for your help an if I'm wrong I help you don't mind helping more.