Umm... I'm not sure what it says about me, but I didn't notice things being off with your racial diversity. The characters you picked and presented seemed very natural. It just flowed. I think if all your original characters were Caucasian humans then I have Red Flags pop up in my head. I think what your talking about is a bit over my head and I was too oblivious to notice. I really don't know what that says about me. I understand the plot and your spider webs; I think for me, I believe diversity is more natural state to be in than not. Xenophobia/racism/"change hatred" is an unfortunate and natural survival response.

I don't know where I'm going with this. I feel like I'm rambling. Just, since you pointed it out, I'm very glad your cast of characters was diverse and amazing.