You're very productive! A bit hard to comment all those maps at once, so I'll do just my two general comments. Some of your maps could have a more drawn coastal line to match the drawn elements (moutains, forests and the like).
I would use a blend effect on the sea and shields. The sea looks far too digital to me, and it would gain to be textured with that old paper you used for the lands.
I hope I'm helping!