Thanks so much for your advice L1qu1dN1trog3n, I will definitely re-visit those areas you mentioned. I did indeed start off with GPlates and a re-traced the plate boundaries in Photoshop, the red/green were meant to be 90 degrees but laziness got in the way.

I will be adding Bathymetry at some point once I have done the topography on the continents, but I will re-visit the island chains first as you pointed out. I must admit I did think they didn't look quite right.

Regarding tha Taras plate, I am totally amazed by that, talk about coincedences! It, along with all of my place names comes from Scottish Gaelic, in this case it comes from the phrase tàr às meaning 'to escape'.

I will pop up a revised version soon