Mumbo has freckles now you can't change my mind-

Better image once I finish digitalizing. Phone camera don't like my detail with such small drawings-

Finally- That took forever to upload here.

The thing with Mumbo is I feel he's more freckles than skin. So in normal light he doesn't appear to have many. But as soon as he's out when the sun is super bright or in really bright light, it's just like freckles galore!!! His freckles are also super super light so that's also a factor on how they might not be seen at times.