>>48473371Find (good!) picture. Add it in a layer (1).
Make new layer (2) on top. Fill with white.
Hide layer 2 and stare at the picture you pasted for like a minute, focus not on the details, focus on the shape, the ratios, the distance between things and their directions, and the edges of those things.
Unhide layer 2 and try draw the picture to the best of your abilities.
Repeat this several times. This will force you to try remember those useful facets.
After you've done this a few times where you feel comfortable that you can draw various poses from memory fairly easily, you will now go on to drawing from scratch.
From scratch. Take an image you had used before, re-draw it in a different pose entirely.
So if someone was standing posing, arms to the side pointed out, sit them in a seat, maybe in a bed (seat will be easier for now)
Seat simply has the same general body pose but limbs bent at subtly different angles with respect to your POV.
Use some references of real people sitting on a seat facing the camera.
Do various poses of each picture you used in the last step.
Persistence, stress and repetition will force you to remember these skills quickly and longer. This is the good kind of stress, the one that forces you to adapt and learn skills under pressure.
Doing it with various different art niches, like nature in different seasons, abstract creatures, etc. has similar steps.