What level of realism are you aiming for? Without knowing what you're aiming for, I can't really give feedback that will tell you what you might want to hear, and I don't want to discourage you. It is, after all, your world, so you do have a lot of artistic license.

That being said, quite a few of the landmasses look very similar to Earth, particularly on the eastern side of Skardhyr (I can spot Kamchatka, Sakhalin, and Japan). Qashkavand and Tyraethos are very circular-looking.

The plate motions look reasonable, but a lot of the coastlines look very fragmented and irregular, and don't appear to fit together as you would expect. The shapes of coastlines are very dependent on the geological and climactic history, so you won't get island arcs forming on the leading edge subduction zones nor will you get fjords in temperate or tropical climates.

Have you worked out a tectonic history of the world, if you are planning to do so? Worldbuilding Pasta has a great tutorial on how to develop this, with a supplementary guide on how to create this with GPlates. Artifexian over-simplifies a lot of details, and his tutorials can be quite inaccurate. If you're worldbuilding as part of another project (e.g. a story), then they're good enough to get a somewhat plausible world, but if you are worldbuilding for the sake of it and want the most realistic world you can create, then there's a whole world of research papers and applications and articles to explore.

If you want a much more realistic world, I would suggest:
  • An Andean-type mountain range along the south-west coast of Qashqavand
  • More plate boundaries (and micro-plates) to explain the hooked peninsula in the south of Qashqavand
  • Lindhaenes looks out-of-place: it doesn't appear to have split off any neighbouring continents, and the huge number of islands can't easily be explained. Are they the peaks of a submerged landmass? A magical cataclysm that destroyed the continent? Same goes for Tyraethos.
  • The southern continent looks just like Antarctica, with a few chunks taken out. Again, it doesn't appear to fit with any neighbouring continents.
  • Fjordhaerne may have broken off from Skardhyr, but where is it going? The current scientific consensus is that slab pull from subduction zones is what causes plates to move, but less is known about what actually causes subduction zones to form in the first place. I'd replace the transverse boundaries at Qiol with a subduction zone that is pulling Fjordhaene towards it, and a back-arc basin to the north because Qashqavand is moving away from Fjordhaerne whilst also pulling the latter towards it.
  • The island arc along the south eastern boundary of Qashqavand could be enlarged, as it is a trailing edge subduction zone
  • It may be helpful to attempt to figure out why Skardhyr looks the way it does, particularly the large inland sea in the south. I'd have another plate boundary along that somewhere, either closing the sea (like the Mediterranean) or opening it (like the Tethys Sea in Pangaea).


Again, I'm not trying to be overly critical, so if hyper-realism is not your goal, you can ignore me. I don't want to pour cold water all over your project.