Attached Link: http://www.aleknest.com/

Aleknest's website link is working for me...odd.

I have both girls, they both have their own unique features. Nadya has a ton of really cool freebies (armour by Serrge, helmets, catsuit textures, some P5 dynamic clothes) I load her up and play every so often, have only done one serious render so buying her clothes pack for me at this time isn't worthwhile.

I'll admit I'm partial as can be to Natalia...I've had her since she was 1.0 over at Daz. There is a wonderful free upgrade policy her that has allowed me to own 3.0 :p
There's a few freebies for her too, a bikini and a dress along with a ton of textures over at Dacort's site. You need to register to join.
Like someone suggested before, download Undine Lite if you want to 'try' Natalia first...she's got an amazing amount of morphs for being a freebie.