I do not think she has a website, she has kindly donated all so far(thank you Katulle). Love her bags too, but you can make them if you find a nice design to decorate.Her designs with the circle were especially nice and expect she made them herself. You never know she might donate one of those days (say I in hope lol)

Be sure to look for her designs under the tab Marked Designs by Cuties in the upper right corner. We have lots of very talented and generous Cuties who digitize. And all of the designs in this are are free.

She does have a website where she has embroidered items for sale and designs but I haven't seen a link yet. I know she can only sell the finished items in Russia but I expect the designs are available to all.

Hello Monica,
welcome to Cute :o)
Lyn has asked this question a few days ago. Ekaterina/ katulle wrote that she is working on the design of the page with the embroiderydesigns. So I hope she post the link here and not everybody has to send a PM (that will get her very busy for a while *lol*).
Greetings, Bettina

Hello!
I've been working on developing its online store! It takes a lot of my time.
  I will inform you!
Thank you all!

I look forward to seeing Katulle's website!

Seeing the answer below is exciting and I look forward to seeing it