New to the forum, so first: Hi!

Secondly, I'd like some opinions. I'm looking to add another female to my collection of bps. I'd like a more diverse collection (this hobby will double as a class room project as I am a high school biology teacher)

As of now I have:
0.1 spider het hypo
1.1 pastels
1.0 super pastel

I have a budget of 500 and I'm looking to trade with my pastels, or sell, to help boost my budget.

What's are some good options for single or double trait females..