There are more masterclasses than there are good ones. Here are four criteria for filtering.
01 — Who is teaching, and what do they actually do besides teach?
If their entire practice is teaching other artists how to do PMU, ask why they aren't doing PMU. The best PMU teachers have an active client practice and a body of healed work you can see.
02 — What's the student-to-teacher ratio?
Group sizes above six dilute the value catastrophically. Above ten and it stops being a masterclass and becomes a presentation. Look for two-to-six.
03 — What does support after the course actually mean?
Lifetime support in a Slack group of 800 strangers is not support. Lifetime support from one person who reviews your healed results when you send them is. Ask which one is on offer.
04 — What do you leave with on day one?
A complete kit suitable for independent practice should be included or available add-on. Otherwise the course price is misleading because the real cost is course plus EUR 600-1,200 in equipment you didn't budget for.
If a course can't answer these four questions clearly in writing, save your money for one that can.