seams... are just dotted lines... not so difficult.

I didn't see a lot of cobwebs in my life, whatever cobwebs I see are on pictures and TV. I am sure there are weird exception everywhere, nature is amazing to the point that they categorize tiger as cat. -__-;; The only few that I see, is pointed. triangular at the corner of the ceiling.

No one can be perfect, though, high expectation is better than LOW easier reach goal.