So... did I pass? :)
And they are right!
I did up this quick drawing so I could test a few things out.
2. Blending. It dries quickly (hence no mess) but I don't know if you can see it, if you put down a colour and them immediately put a colour over top it blends a wee bit. On the left side I put white over the blue and my attention to detail son caught it so it's obvious enough in real life.
4. Fill in without crossing lines: IT does! Even my small kite didn't have overhang and I'm not that careful of a person.