Art Resource Thread
colour theory:
Color—the theory and practice of painting [PDF]
drawing:
Summer Drawing Starter Pack [tutorial playlist]
https://line-of-action.com/practice-tools/figure-drawing
painting:
How to Match Any Color with Oil Paint
How to Paint Flesh Colours Using the Zorn Palette
software:
https://www.gimp.org/
https://krita.org/
https://inkscape.org/
https://www.darktable.org/
book:
The War of Art [audio]
[I'll be updating this indefinitely. feel free to contribute]
Great initiative! My suggestions!
Color: https://www.wada-sanzo-colors.com/ https://colorhunt.co/ https://paletton.com/ https://coolors.co/
Software: https://www.pureref.com/ https://rawtherapee.com/
Image references: https://openverse.org/ https://search.creativecommons.org/