My two biggest issues are the poor quality of the cut and it not matching the tie.
The pocket square has multiple purple flowers on it, while my tie has none, so when the two are used together they don’t exactly look like a matching set.
The cut of the square is off and when I try to fold it by the opposite corners, the other corners are noticeably off. It makes it hard to do a fold with the corners sticking out because there’s no way to hide the misalignment when I start folding it.