Replace all those Low-Energy 8W lamps for something nearer to 30W Low-Energy (=150w filament) - although I see some stores selling halogen lights (but they will get hot, + risk of smells from light-sockets!).
BETTER: Buy a builder's 500W halogen lamp and tripod (£19 complete) - reflect the light off the white (is it?) ceiling and the whole room will be transformed. Take the pictures . . . . switch off. Make sure everyone knows about the flex and keeps away from the lamp-housing, for that reason alone I'd never put one near curtains - put at the far-side, but so no-one can look into the lamp. You need to set Auto White Balance, or set to "Halogen" etc.... again practice beforehand - this practice will make the children more-relaxed, later on (And it helps you the same!).
I also came across this, which might be useful for any friends you've not seen, visitors, etc. Make sure the wife is on-hand with a powder-puff to keep her in the loop, mainly.
Three point video lighting tutorial - YouTube
Don't forget that you have the "fall-back" of the earlier camera - indeed why not compare pics with the two cameras.....AFTER you are familiar with the new one. I've seen many folks who buy a fancy camera and looking at the pix shows no difference.... don't let that happen, here....Practice lights, Practice camera.
Good Luck.
BTW those light fittings he's demo are a fortune! However, they are lovely even light and wrap up into a small bag. The Builder's Lamp can go in the Garage/Loft when cool, with a polly bag over it to keep clean.