lightsaber dicks or mosaics are alright on tapas - website and globalcomix
on tapas app, webtoon canvas, mangatoon and webcomicsapp you can barely show anything, either zoom in on the faces or put a black bar over part of the panel (Moonshine recently had a missing page, it's author felt that there was nothing there that wouldn't get him in trouble here), both nipples and genitals aren't allowed to exist
on comicfury, flowfo and epico you can show as much as you want
For comparison from my own work - the same page
on tapas app
tapas website
and on comicfury
bdsm-boys.the-comic.org/comics/235/ (had to remove the https part, to avoid preview)
naturally, nsfw content warning