What curtain length?

[Beetie1]

I'm redecorating the bedroom of my two youngest dds (1 & 3) and we have just hung the brackets for the curtain rails. The plan is to have a voile type curtain on the underside and a thicker curtain on the outside. Both curtains will need taking up but I'm not sure what length would look best. Would floor length be ok? Sorry pic is a bit dark.

Whatever you do just don’t take them too short like I’ve just done!i meandered exactly to the bottom of windowsill and now the curtains look like the soft furnishing equivalent of ankle swingers!!!!!

Floor length will be fine.

72 would probably fit fine without need to alter