Ok, so I don’t know that this is any indicator of left/right brain dominance, but here’s the shoe test running around on social media.
If you see it as pink and white, you’re supposedly left brain dominant, grey and green you’re right brain dominant.
At first I saw pink and white, but my wife stumbled across it this afternoon, and held up her phone and said “pink and white.” I caught it in my peripheral vision and saw green and grey.
If you’re so inclined, try holding the image off to the side and catch it in your peripheral vision to see if you see it differently. If nothing else, it’s a pretty cool mind trick.