The problem with all of these races is simple. With the exception of the Aesur, they are all underpowered. They have worse ability score increases than a variant human, no choice in they're feat selection, and do not have a variant humans extra skill. The Aesur are the most balanced, but still, the feat+darkvision are not worth losing a skill+feat of your choice. If you are someone who thinks the variant human is overpowered, I would still suggest improving all the ability score increases.