I've had this one lurking in the wings for a while now! Wasn't sure what colours to use, especially on the wings. Bought a Vallejo "Hexed Lichen" paint as a dark purple basecoat to mix with black - then the GW paint "Genestealer Purple" to water down and layer on as a glaze on the "veins". This didn't work quite as well as I hoped but the final result is good enough for tabletop, I feel.
The Lion body I ended up using Vallejo Khaki on as a base. Then I mixed in Vallejo Dark Sand to brighten it - again layering it on quite dilute to control it so that I kept the recesses dark where I had used an Agrax Earthshade wash.
Very close to finishing the entire Dark Elf army now! Only things left are a Witch Elves unit and four stands of command figures. Very satisfying progress this year.