So, at your boundaries where one plate is slamming into another, but that plate is moving laterally, like the 1/6 boundary, you're going to get a mix of effects. Since 1 is smashing against 6, you'll probably get a convergent boundary effect - meaning that one or the other is probably slipping under the other and creating an island chain. At the same time, the transformative side of the boundary is going to mean this is an active earthquake zone.
At the same time, this could be an example of what I was talking about with different plates affecting the movement of each other. 6 isn't moving toward 1, but 1 is pushing up against 6. Given the current direction of 6's movement, and a basic understanding of what would happen if these were objects floating on water, and you'd start to see the pressures exerted on 6 would cause the bottom half to continue swinging rightward, while the top half may start to push up toward the the top or left, squeezing against that divergent boundary. at the end of the day, we might see a roughly counterclockwise turn being effected on plate 6, overall.
You're also right that with 9 and 16 being divergent boundaries, we'd expect to see a deep trench along that line, and not islands at all.
Projection might not be a prominent concern, but for me it was kind of a head-smacker later when I realized that I hadn't planned for that, and once pasted onto Google earth I got a lot of distortion on my northern continents. You're right that yours aren't too near the poles, so it may be less of a problem. I also notice that, compared to earth, your world is a little heavy on the ocean-cover and a little light on the land. This will likely have effects on the overall climate of your planet (with smaller landmasses, comparatively, you'll have better moisture distribution and fewer deserts, most likely).