I like this map a lot. The colours of the land and the sea are great and fit very nicely into the style of the map. I've a few comments to make. Firstly, I think the over-colourful aspects of the map are the text. I'd take that coloured background away. I'd also suggest reducing the saturation on the rivers and lakes - I think they are good, but a little over coloured for the map. Compare the colour of lake Feydusk to the colour of your ocean. I'd also suggest outlining the rivers - all the other elements of the map have clear outlines so it is a little odd that the rivers don't, especially as the lakes have an outline that makes them look separate from the rivers!

I'd also suggest not italicising Tirwen - you've got a nice font that looks great everywhere else - no need to italic it for the title.

I love the border and the worn paper. The care and attention to detail you've put into this really shows and is a testament to a great map. Excellent first map to post here. Repped!