>>5782938The medium is overall little used and cumbersome to use as you can easily achieve but optical blending unless you have a myriad of pastels.
Oil pastels are a bit different, as you can use solvent and thus get something close to oil paints.
I've bookmarked a few pastel related YouTubes that I should dig further, in case that can help, but IIRC this is mostly landscape stuff. Illustration is usually tighter than what pastels naturally allows/are typically used.
There also are some famous old French pastellists (-> Wikipedia).
https://www.youtube.com/c/BethanyFields/videoshttps://www.youtube.com/channel/UCvA1fsVyX78RcZuC-aFyw4ghttps://www.youtube.com/watch?v=Ez_2OYnqdBY