Which bag should i choose for school and which watch should i choose to wear?

The bag looks really cute, but I'd go with black. Since black is a neutral color and it would go with any outfit you wear. As for the watch, I actually really like both, they look really cute as well, but I'd go with the second one, and silver. Because silver has the same story with black, so if you wear pink for a day at school for example, both of those can match up really well, but you can go for the red one too if you want, your choices. Just saying my opinion. :)