Working on a Tzeentch Chaos Lord Commission

 I recently started working on a commission for a Tzeentch Chaos Lord figure for a Thousand Sons army, and figured since I haven't really posted much in the way of work-in-progress entries here on Painting by Tinweasel, I'd start things off on this guy with as bare-bones as it gets - more or less what the customer handed over after discussion of the "tentative" final version. No pre-cast resin bases (from a near-to-opening online business elsewhere), no dramatic poses (necessarily), and no diorama-style basing - just a suitable tabletop army leader painted (and converted, even, as things have worked out) to a display quality. I've also never had the opportunity to paint any of the old "official" Chaos Marine Legions, and the Thousand Sons definitely have character in abundance.

The rough design: essentially what the customer gave me at the start:


 What the customer is looking for is a Tzeentch-allied Chaos Lord w/ wings and a Daemon Weapon to lead his pure 'Sons army. The swapped-out pieces are to represent his Daemon Weapon meshed with one arm and a mutated close combat weapon on the other - I'll be making some adjustments to both arms to tie things together, and my suggestions seem to have been well-received. We likewise both agreed that an improvement on the current standard Thousand Sons Rubric Marine head would be good, with the understanding that the whole figure still fits the Thousand Sons theme - we discussed options, and I've got the go-ahead to model something I have in mind that ought to fit the bill nicely. I also suggested that the current figure is apparently lacking some sort of ranged weapon in terms of "what you see is what you get" and that with some additional conversion and sculpting that would tie together with the current planned appearance, he could be plainly and obviously game legal while allowing me to do a little additional sculpting. Other than the agreed-upon requirements, the customer has more or less given me free rein otherwise, so I'm going to get creative with this guy (within reason, of course).

 The agreed-on color scheme should look like a darker version of the standard Games Workshop Thousand Sons Legion colors, while using analogous and complementary shades for the additional parts. I'd like to try some new effects with zenithal/ambient lighting, given the figure's posing, and am really looking forwards to the planned sculpting and additions to the base model. I've not had a chance to paint any Thousand Sons troops yet (nor Raptors, for that matter), but I'm really looking forwards to working on this. (Did I mention that other than the agreed-upon requirements, I've more or less got free rein from the customer to work on this guy with whatever comes to mind and fits with the overall theme? Yee-haw!)