Those red engines, while hot, are such a tease. I want to see the damn thing painted already!
Also, I for the life of me cannot see the Virgin logo on the tail despite what others claim.
You can probably see it the best in this pic of Virgin's 3rd A350 (at least the V anyway). It's easier to spot whilst looking at the full size image and changing the brightness might help AIRBUS A350-1041 (MSN 0319) by Eric GUTIERREZ, on Flickr
Virgin changes livery every few years - typically small changes. I think this time might be the case.
All Virgin flying club members have just been asked to choose the name for the new business class design from five options.
The livery and the seats are all part of the marketing campaign to launch the new A350.
Here's an observation, whilst in the above pic, the Virgin logo appears lighter than the rest of the tail (as you'd expect given the current livery), I've noticed that on the first two aircraft, the Virgin Logo appears to be darker than the rest of the tail. (such as the below pic of their first A350). I suspect it's just a trick of the light or the covering they've applied. It's quite hard to see this one. Msn274 F-WZGN 25/10/2018 by A380_TLS_A350, on Flickr
Does it makes sense to put expensive engines on non-fitted cabin ?
Yes, if you intend to fly the aircraft to some other plant soon, for instance for painting. It should be outfitted before painting, but you may have alternative practices when painting is a temporary bottleneck.