After looking at this comparison video, you can see a few issues with the Inibuild A350's wing
Flap Track fairing - incorrect shape.
Sharklet - incorrect shape.
Wing - looks like the chord is too long, which also resulted in a bigger sharklet in sim
At 2:50, after second engine start, you can see the spoilers raised a tiny bit. I believe the same feature existed on the FBW A380, and was done IRL so the spoilers and the flaps don't scrape with each other during extension/retraction.
Flap position and geometry: after flap extension, you can see a gap exist between the flaps and the spoiler on the real thing; while the Inibuilds one just doesn't have it
From another post: Gap between inboard and outboard flap is missing; related the flap position and geometry
Speedbrake extension: extends/retracts too quickly
There is still a long way ahead for the A350, but I remain hopeful as Inibuild brought us a relatively good product in a short time. Hopefully the devs can look at the above issues. Cheers
Video link: