I'm sure the density is an issue when the piece dries out.... and it's not helping that it's brand new. They do settle down a lot with time. The other thing I notice is the hairs along your hairline, particularly in the temples, that seem to be vented straight forward. I've commented on this before but it seems to keep showing up and I don't think it looks very natural.

To remove significant density, you have to send the piece(s) back.

The knots have been discussed a lot around here lately, so you can read the other posts.

I think even the "no-shine" tape can be seen in the front. When it comes to the hairline, unless you're really combing forward and hiding it completely, some kind of glue there is best.