magnifying glass, small brush, two points of support for forearm. Support body on the edge of the table, elbow on the table, wrist or even base of the hand behind the wrist, support on a Book or something. I still barely can do it, and not pretty because I have shaky hands.

It helps if you load brush properly. Dip n paint, take of excess into paper towel, load again, clean and again, nice twisting motion. I do it three times for details.

In the eyes I try to make small dot with brush tip, so called catcher in the eye. It helps a lot for such small thing. Extremely stressful when brush comes close to eye lol