So... while my spiritseer hasn't seen much progress... or any progress at all, I did get some work done on another project.
The first of two wave serpents.
images here:

its pilot:

The idea was to paint up a part like it was a gem, then as if the house symbol of the embarked unit was shining through the gem from behind. I'm not completely happy with how it turned out so far, but I'm also not sure on how to improve on it:

And lastly, a top view:

There's a few things I'm still working on. First off, the rear door. I have no idea how to open it once I glue the top half of my wave serpent in place. It's not really necessary, but so far I haven't built a single vehicle which doors can't be opened, and I'm not planning on starting now. The eldar door has nothing to get a grip on, however, contrary to the teeth of rhino doors and the drop pod doors which you can get a firm grip on. Not sure how to solve this yet.
The base still needs to be attached. Seeing how the flight stand that came with it broke its tip off during painting, I ordered some magnetized flying stands and am awaiting their arrival.
I'm considering more parts to paint black, most obviously on the serpent shield generators and the sensor array in the front. I'm not averse to keeping them bone for now, or forever, but I'm also considering whether I should make some more parts black in there.
Lastly, I would like to paint the Iyanden symbol on the craft somewhere and the house symbol of the pilot, to denote to which house the craft belongs to (this won't be the same as the occupants, as there's only one living member of that house left, and she's to be my spiritseer). I'm thinking probably close to the canopy, but I don't know. As for the iyanden symbol I'm pondering about doing it on the yellow panel just to the back and outside of the engine intakes. It should look nicely there...
Anyway, comments, suggestions and complaints are always welcome, and I hope you enjoy/get inspired/something else that's positive