Also, the body join looks to be pretty much along the centreline. Assuming that and looking at the bridge picture, the bridge is sitting very much on the bass side of the line, and the treble side post looks nearer the middle than the bass-side post. So even if you did use a round needle file to enlarge the post holes in the bridge, you'd probably still end up with the strings not running straight down the neck, but at an angle. It's probably the treble post hole that's been miss-drilled (though they could both be slightly out).
I'd also have a look at the stop-tail holes and see how well they've been drilled and how the stop tail lines up with the neck centreline. You don't want that off to one side so the strings come off that and hit the saddles at an angle.
There isn't any finish on the fretboard, its just been sanded with a fine grit paper, but they've used a rough scraper to get the binding level with the board and not re-sanded the board before putting the frets on. If the kit stays, then I'd first scrape the board with the edge of a craft knife blade or a single-sided razor blade to remove most of the roughness, and then sand the board in that area with some P400-P1200 grit.
The knot in the headstock is probably small enough to not weaken it significantly, but visually it's an issue and it could move a bit over time. Not something you should have in a neck.