Honestly, reading rave reviews, I still did not expect that the brushes are so cool (it was embarrassing that they were not natural). I have been using brushes from sables and squirrels for many years, so EcoTools brushes were even better. What is the difference: my natural brushes are very dense, I would say solid, and applying them shadows, you can see the boundary between the area where the shadows are applied and where they are not applied (you had to tremble very much). And EcoTools brushes are so soft, if I did not know, I would think that they are natural. The shadows are applied very gently, almost weightless, and the color of the shadows lies very delicately (I do not know how to explain it correctly), feathering was not needed. I am delighted!