You've got the basics right. A maximum of three plate boundaries meet at a point, which is correct, and it's nice to see hotspots taken into account.
A first tip: colour-coding your boundaries depending on whether they're ridges, trenches/collisions, or transform/strike slip faults will make the map easier to interpret.
Can I assume your reference frame - the thing that you consider "still" and measure your plate motions from - is the hotspots? (A sensible choice.)
A few points:
If you're going to show plate boundaries in your final map, you may want to think about their shapes. Ridges in particular have a distinctive "stepped" shape, as segments of ridge proper are offset by transform (strike-slip) faults. You can see that here: http://www.mnh.si.edu/earth/text/4_3_1_0.html The ridges should be at right-angles, and the transforms parallel, to the plate motion.
Trenches can be straight, they can follow a continental edge, or they can have an arced shape with the subducting plate on the convex side. It's OK to have quite oblique subduction.
Transform faults are typically straight. They can have bends in them though. These bends give either "pull apart basins" or "push up mountains". You have an example of the latter on the B-D boundary.
You could eliminate the F-I boundary. If you keep it, either make one plate moving faster, or make it a very slowly spreading ridge. (Subduction zones don't tend to go slowly). Similar for A-E.
You have more large transform boundaries than are on Earth. (I have the same issue with my own WIP tectonics-based map.) The E-F, F-G, and G-K boundaries in particular seem a bit strange. However, if you meet either of the two "growing" cases here: http://en.wikipedia.org/wiki/Transfo...rm_fault_types then you can justify those big transforms.
A plateau somewhere next to the B-C-H mountain range wouldn't be unreasonable (much like the Tibetan plateau).
I might expect some clearer island chains from hotspots (like the famous Hawaii chain). Not all hotspots produce such neat chains, but many do. The biggest island, and the volcanically active one, is over the hotspot, with progressively older and (generally) smaller islands extending away in the direction of the plate's motion.