Aerowyn

So, I've been doing world challenges, and I've gotten about 5 pieces or so so far.

But I'm kind of thinking ahead to the future, and researching prizes people have received from submitting their pieces... some people get good things such as Faerie Paint Brushes (RARE), and the most common thing I see are petpet paintbrushes (weak).

Do you guys think I should just sell the pieces once I get them all or should I submit the pieces and risk getting an item worth less?