Looks very nice! I wonder why blue is "sleep" and orange is "wake up". That seems flipped from what it should be?
Well, I think blue light less disturbing if the kid sees it in the middle of the night, and more likely to get back to sleep. Also, orange looks more energetic and more appropriate for when the kid can get up. But that kind of perception is culture-dependent. I'm from Europe and this scheme seems natural to me.
I'm from Europe too. Blue(ish) is daylight colour while red(ish) is night colour. Staring at blue light hinders melatonine production, affecting the sleep cycle. Hence the existence of products like Redshift [0] and Twighlight [1]. Increasingly, this is built into visual interfaces, both my Gnome and Android have things called "night light" or something similar.
I'm aware of that, but that was an afterthought. Anyway, it's not made to be stared at, and with light modulation it's quite faint when the room is dark. so I don't think it matters in the end.