Caitlin, your girl Frida looks good to me. I love her coloration. Is that just natural variety in the Tarahumaras or is something else contributing to that? My girl is so much darker brown (with some pinks the pics don't capture well).
I'm going to keep Lyssa on the small rats as they're the perfect size for her. I probably should have increased the feeding schedule when I graduated her rat size, but I'll keep her to 3 weeks and see if she trims up a bit. I feel she might be on the upper end of the dwarf spectrum as she's a bit heavier and thicker than I expected. Amuses me that she's the largest I have for now, but will eventually be the smallest.