At last, some pictures.
My phantom is still in the state I described yesterday : I did take some photos first thing while there was still a little natural light around. Still, all were taken with the flash; be warned that it makes the Blue look significantly lighter than IRL, and help the highlight show on it.

Here are some shots when you can see more of the base :



And some more view of the titan itself :



I will do some more highlights on the blue and probably glaze it on the shoulders and legs (So that it look better IRL), and refine the shade/light a little on the bone too.
I also have the pool to finish (water to add, some glaze of green-brown inks, etc.), and will probably do some more work on the rhino too as I find it a bit lacking in details (specially as the chapter symbol on the side door was obscured by the weathering). I did put too much mud on it, but I'm not sure I'll have the dedication to repaint the top of it, specially as I'm very pleased with the soot from the battle damage on the other hand.
I'd like to get some opinions on a few points :
- I'm still not sure how I will paint the Pulsars main weapons. At first I thought that a Cold white would look good, but I really have doubts right now. A dark red is tempting (a deep, dark red is always a temptation for me) but I think the gems are enough red and it would steal their thunder. Keeping with the blue and bone, maybe with some freehand Ulthwe-like décors ?
- I somehow think the model and the base are not tied together enough. The obvious way is to weather the Titan a little, but I'm not sure if it would still look as eldarish and out-worldly as it does. Maybe a slight amount of mud on the feet ? Or possibly an Eldar infantry figure with similar colours on the base ? Both ?
- I'm toying with the idea of making the base look like a months old battlefield, with some vegetation regrowing, a few tufts, small bushes, weeds... I'm not sure it it would be wise though. If I keep the fresh battlefield theme, would a few patches a burnt grass (away from the wreck) be wise ?
I will of course make up my mind myself sooner or later, but you have a great idea or suggestion, I'd be glad to hear it.
Salutations to all !