This shit really ruffles my feathers
I wouldn't even call it racist, to me it just seems extremely insecure. Manny probably has sort of untreated complex about their own facial features and and channels it into a fixation over fictional characters facial features, but spending so much time thinking about what makes a fictional character/person "look hispanic" just fuels their bizarre hang-ups about their own face and body. We already know that Manny's actually black and not a white girl larper, just one who never post pictures of themselves- I figure this is all some "coping mechanism" where they just dig themselves further into a hateful little hole of projection and and self-image problems.The thing with Manny and a lot of people who'll blackwash characters is that that they have a strange need for everything to read as the race, gender and sexuality of a character. Subtle character design choices will not be enough for them, even for characters like Luz who I think spoke some Spanish phrases and was clearly brown enough to appear Hispanic, these type of people need it to be extremely obvious to make them satisfied. Even if it accidently comes across as being mildly racist to anyone, they need this Hispanic character to have big full lips and curly hair so she can truly read as Hispanic. It speaks a lot about the possible fact they might have never actually spoken to or seen an actual person of color in their life to realize the traits they're putting on to make a character seem like the ethnicity that they are or to blackwash them are traits from minstrel shows or racist stereotyping.
Manny and people like him basically need stereotypical traits slapped on a character design for them to believe that the character fully looks like their race.
This looks like Manny took the sketch layer of an okay drawing, colored it in and then posted it because they couldnt be damned to give the slightest modicum of effort. But nope, gotta shit out fanart as fast as possible to amass a larger tumblr following.