Ah the fierce and the fabulous, Cara Delevingne. I have complained in the past about models being lauded for having great style whilst wearing normcore, but none of that to fuss about here- Delevingne has actual style.
Part of a model's work is to make many things look good- if only for the second it takes to get the photo. This can make a good model seem a lot like a chameleon (the same is true of good actors, who can play a variety of characters), which adds an extra layer of difficulty to typing for us, the distant public viewers, but onward we go.
Her s-curve is solidly subtle, and her face is balanced/compact first, with fullness as a second, leading us to Magic Queen with some pull to Valkyrie. The subtype possibilities for MQ are Enchantress, Sorceress, Necromancer, Imp, and Shaman. She plays in all of them, but I see Imp as her most natural fit, with a bit of Enchantress to soften it at times.
She's somewhere between 5'7" and 5'8", with narrow rectangles, softened edges, and ovals as dominant shapes, making Snake her Animal Familiar.
Her coloring is soft and neutral, but which of the seasonal people she is requires further examination.