is it so ugly without paint?
er. i suggesty you buy those spray cans and spray first then
glue!
There's no hard and fast rule. But if you do that, people can see
the parts where you glue.
So....you can, paint, draw details, then stick, then cover-up
the joints with paint, and then fill the details.
Or you can (short-cut), stick, paint (your painting must be
sibei zhai), draw details (your hands must be sibei zhai) and
that's the end.
I prefer the first although it takes hell longer.
