1. Black and Latino? Really?
It's a well known fact that Blacks and Latinos are not on good terms at all. This occurs at multiple levels of society, from intellectuals to gang members, African Americans do not get along with Hispanics. I'm not arguing that because of this Miles Morales should not have been Black or Latino but I am saying that both aspects of his race must be fully explored in the story, otherwise it becomes an issue of over emphasizing a characters status as a minority.
2. His age
Yes I know, comic book characters never are realistic representation of how old they are. But there is a part of me that objects to a 13-year old character attempting to be Spider-Man. I understand that it would make a cool story, at 13 many kids are just starting to find themselves so it's intresting. However, at 13 the risks and consequences of a career as a vigilante are much higher than that of a 15 or 16 year old.
3. That costume
|From teasers for Ultimate Fallout #4|
|From Action Comics #1|