I don't see anything unusual.
You are not a chimera. You are just a white dude that wants to be special or different.
In 1995 there were about 40 cases of confirmed chimerism. And none of those cases had any visual anomalies that could not occur while being not chimeric.
Though the 40 cases is not an indication of that there are only 40 on all people. Or even 40 of all people who had their dna examined. Neiter 40 people of all who had been checked for chimerism. There is no way to tell, as the 40 who were found at that time, were dumb luck. Having different colored eyes, can be the result of chimerism, but also from a late gene silencing, that was different in eiter eye.
My guess about how many chimerism people there are on 1.000.000 people. Is anywhere between 10 and 100. Which is low, but not that rare..
I can take the same photos and add contrast and be patchy. I will be 100 times more patchy under fluorescent lights after a night of drinking.