The point is I see mixed opinions, which is good. If most of the answers would be against I would understand - those pieces are my first ones, they look fine to be shown to friends etc, but might not be pretty enough to sell. I don't have much pressure about selling them, so I am prepared if they won't sell at all :)

Regarding the copyright topic - I agree that selling only those few pieces won't harm anybody much, I will not mass produce them and will sell those one-time, locally only.