Max, in addition to the branch issues that Eric pointed out, there are other structural issues with is tree.
1). The first branch is a back branch. While it's not a "fault", is is preferred to have the back branch between the number 1 and number 2 branch.
2) the bar branch up near line number 3.
3) The needles are long for the size of the tree.
4) there are a lot of places where I see "chicken foot" branch structure. That is, three branches coming from one node. There should only be two.
5). The trunk is exposed all the way from nebari to apex. Yes, we do want to see the trunk. But there should be some frontal branches hiding a bit of the trunk here and there. Kinda like women are sexier when they're not entirely naked. The little bit covered up adds to the mystery.
6). The tree needs wiring. The branches appear to be crowding each other, and fighting for the same space.
7) the tree is inconsistent. There is movement in the trunk. But the branches are relatively straight. Yes, the slant down, but after that bend, they go straight out. Since the trunk is curved, so I believe the branches ought to be curved as well.
8) and in my opinion, the left bottom branch is too long. The trunk appears relatively thin. The heavy bases of the branch, like Eric pointed out, make the trunk look thinner that it probably is. So, the "rule" is: thin trunk, short branches, with foliage close to the trunk. A fat trunked tree can have longer, spreading branches.
Now, don't get me wrong, it IS a nice tree. Great bark. Good nebari. It appears to be nice and healthy.
If you going to use this tree as a model, just be aware of the issues it has, and avoid duplicating them in your tree!