Which colour paint with this wallpaper?

[SeasonallySnowyPeasant]

I’m redecorating DD’s room and this wallpaper is going on one wall. It’s a tiny room (less than 3m square) so need a bright, light colour for the other walls. I was thinking white but the paint underneath is blue so it might need a few coats. Any other ideas.

Wallpaper: Dunelm

Twixes not all little girls buy into the whole pink thing (thankfully!). Both my DDs had their bedrooms re-decorated when they were 3yo (4 and 6yo now). One asked for a woodland theme, the other wanted a garden theme and as a result they both have green rooms. There were no tears, quite the opposite in fact.

It doesn’t quite ‘go’ but DD is 7 so cares more about sparkles than taste. Case in point, this is the wallpaper she wanted on each wall (and I refused to get on grounds of sensory decency).

DD’s room is 90% finished. The glittery wallpaper works pretty well! I went with minty-blue curtains with a bit of sheen to go with the rainbows.