Precise - minimum eyeliner
In precise eyeliner look you apply gel, cream or pencil eyeliner as close as eyelash line as possible and finish at the end of lash line. This look is good for every day natural makeup look and make prominent your lash line by darkening it. The best brush for this eye liner style is E11 Eye Liner brush. Its thin and precise tip is perfect for this type of eyeliner look.
For cat eyeliner look, after precise line on lash line give a flick at the end of lash line with little upward stroke. The flick do not need to be straight line instead it can be little curvy as well. After that you can thick the line on lash line to complete cat eyeliner look. The brushes for this style can E11 Eye Liner brush but the perfect one is E06 Winged liner Brush. This brush have small precise angle and let you achieve precise flick for cat eye look.
For smudge look you can use gel, pencil or powder eyeliners. The perfect brush for this look is E20 Short Shader. The small and soft bristles of this brush is really good to smudge color along lash lines. For pencils, you can apply them directly along lash line and then smudge with this brush. For powder and gel liners, use this brush to first apply product and then blend for smudge look.
Winged or dramatic eyeliner
To achieve wing eyeliner look you need straight flick at the end of the lash line. There are some eyeliner hacks to achieve this look including using cards or other stencils. The best brush for this look is E65 Small Angle . This brush have little wide angle then E06 and with this angle you can get straight flick and then further fill the rest of line. The best way to use this brush is first mark the place of wing with light hand, then sketch lines towards lash line and finally fill them. You can use E06 or E10 brushes as well but they will take little more time to get perfect wing.
Under eye liner application
You can either skip applying any color under lower lash line or can go for defined or smudge look. To apply eyeliner under lower lashes the best options are pencil or powder eyeliners. Gel eyeliner can be little too intense if not applied carefully. To apply liner under lower lashes the best brush is E15 Flat Definer brush. This brush let you apply the liner with both as defined or smudged. Press the product along lashes with this brush for precise or defined look and blend for limited smudge look.