I apologizes, cause this will be a very short review. I hope pictures attached will help you to define all the purposes of those brushes.
Multi Eye Shadow Brush
For applying eye shadows on the upper lids. Having a soft brittles, able to put thin shadows on my inner eyes.
fat soft brittels
Eye Contour Brush
Eye Contour BrushUse:
For applying eyeshadow on entire lids. Soft brittles for applying shadows or mineral evenly. A very common brush, but usable.
Not too short not too long brittles,
comfortable in applying shadows evenly