I guess you could go with a mixture ofboth. A thin fire veil over a crackled lava body ? This could give some really interesting transparency and a lot of nice opportunity for variations and details.

Started with the Head now Idk about those concepts if they work. Do you have any ideas for variations? I appreciate any kind of tips☺️

Yes they do work ! But you could push them further, play with the lava aspect and the eye, the hair. You could add very dark purple obsidian as jewellery

I'd study some lava, and different types of magma you'll be surprised just how many textures there is in one form of element like this. It explodes, bubbles, boils, rips apart in solids and liquids due to temperature changes, there are so many things you can incorporate which aren't just the same texture! Go and look at some exploding volcanoes!

Just found this interesting maybe it’ll help me more if I understand it better
👍🏼 And thanks for your coment

With this one I explored the idea of her “skin” melting away with the Center being her very hot heart

So this is her with the lava layer on and without kind of like how real lava works she “sheds” her Skin of. And under it is a lot of heat and Energy. Maybe she could use the lava Layer as a sort of weapon idk gonna sleep for now.

Little Animation showing the different stages of her form

Some Compositions

Wich ones do you like so far?

The brief mentioned that you needed to portray them attacking or defending so 1 and 2 seem good.

Yeah either 1 or 2 have a lot of potential