Question Regarding Alter Self

[Spruce]

Hello! I had a quick question regarding the custom spell Alter Self. I may be overthinking/over-complicating it in my head, but my question really boils down to this:

If I am playing a Wood Elf, can Alter Self give my Wood Elf the appearance of an ethnically Illuskan human? So like I go from appearing as "Spruce the Wood Elf Sorceress" to (and this is just an example mind you) "Hilda the Haggard from Luskan?"

I understand that the wiki reads as follows:

The rule about needing to change your race/body entirely still applies. When you cast the spell, you must become the average member of another race. You can't simply change your character's face around, or change their skin tone to disguise. They can, however, change into a different variant of that race. For example: A pale Chondathan can alter self to become a swarthy Mulani, or an elf might take up a Drow's average appearance, but not merely change their skin and nothing else. This CAN NOT be seen through with True Seeing. Only illusions can be seen through with True Seeing. This can be dispelled, and is lost on character death/severe incapacitation.

So I think my confusion and hangup are on the part where it mentions that "You must become the average member of another race." I am seeking clarification on using the spell in conjunction with the bluff and disguise skills to virtually create an alter ego (or egos) to use at various points - clearly this would require a lot of work on my part in regards to outfits, character appearances, and how they interact in RP on the server, so before I start barking up that tree, I want to make sure that it is actually something that the spell allows for.    Thank you in advance!

-Spruce