I finished works on British islands (England, Scotland, Wales, Ireland) and also on small islands (Hebrides, Faore islands, Shettlands).
I focus to historic accuracy how much is possible. it is not 100%, but I did the best what I can and I am sure it is on 98% correct
what is new:
correct/better positions of some settlements, some settlements/regions moved or replaced with another, much names of settlements/regions changed, created Môn island (Wales) and Iona island (Scotland), added some more rivers, added 12 new regions (Ireland 3, Wales 3, Scotland 3, small islands 3), map_ground_types a little changed.
changed starting position of Scotland - capital is moved to Scoine (historic, legendary seat of kings and corronation place - see "Stone of Soine"), regions Moray and Ros were not ruled by Kings of Scotland in this time - they were ruled by powerfull nobles (later Mormaers) of Moray. only later Scotish kings gained full control of this area.
the capital of Wales moved to Aberffraw, Môn. it was seat of kings and stronghlod of Gwynedd family.