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looking at these models makes me nostalgic

So amazing as always. Do you use your imagination as reference, or use pictures or real models?

most of these are from drawing workshops with a live model though.

I think it's always a combination of everything. I can draw a lot from my head but typically that takes a much longer time so I set up as much as I can to get the image in my mind then the work is much easier.

Well... you have a very balanced mind for measures and proportions, it's amazing. Thank you for sharing your draws and techniques. I really think you got the lines ;)
Cheers.