The natural thing to do is to paint Jesus looking like someone from your part of the world. That means in Ethiopian icons (here or here) he'd look Ethiopian, in Italy he'd look Italian, in Germany, German, and so forth.

That got distorted the last few centuries by the fact that White Europeans have been swanning around pushing people around, and that included imposing a totally inappropriate kind of iconography.

It'd be a pity, now that that kind of rubbish is started to be shucked off, and churches in Africa and India are using images of Jesus looking African or Indian or whatever, if instead some kind of antiquarian imagery, trying to look historically accurate, were to be imposed on people instead.