Thank you Julia!
About descriptions and sizes, I still have some problems with this... As soon as I opened my shop less than year ago I keep buying tools and materials to make stuff, I am trying to spend money from my sales. I do not fave clear vision yet in what material I want to work, I do wool, blends, cotton... Also I bought spinning wheel, I always wanted to try spin my yarn!!! :) But it looks like doesn't work out well -- to much time to create anything and at the same time prices are too high for people to buy...
So that maxi skirt, I just created from my head as an experiment and I do not have more yarn like this, so I did not offer other sizes, because I wasn't sure if I will be able to buy the same yarn. It looks like I need more planning.
About treasuries -- I am not sure if they do help in terms of sales, but they help for traffic... and it is fun! kind of art :)