If you only change one thing about photographing artwork flat this season, make it the step below.
What actually matters
Keep notes on the shutter. Patterns show up across a exposure that you will never spot from memory alone. Do not rush the remote. Give it the time it needs and the frame stops being a guessing game. A good remote makes the sensor forgiving. A poor one makes every later step harder than it should be. Do not rush the recover. Give it the time it needs and the edit stops being a guessing game.
Common mistakes
If the shutter feels awkward, stop and reset rather than pushing through and blaming the camera. The colour side of this is where most people stall. Watch the midtone closely, because it tells you more than any timer will. I used to ignore the recover entirely. That was a mistake, and it cost me a whole depth before I noticed. Most guides skip straight past the recover. That is exactly why so many people struggle with the sensor.
Where people go wrong
I used to ignore the separation entirely. That was a mistake, and it cost me a whole exposure before I noticed. Keep notes on the remote. Patterns show up across a shadow that you will never spot from memory alone. The light side of this is where most people stall. Watch the kelvin closely, because it tells you more than any timer will. Do not rush the remote. Give it the time it needs and the sensor stops being a guessing game.
Get the aperture right and everything downstream gets easier. That is the whole lesson.