Rhye I had a fiddle with your map; check it out (see attachment) and see what you think of the edits:
-Added the Kerguelen and South Georgia Islands in the southern seas.
-Removed the landbridge to the Hainan island in China
-Removed the Island below New Zealand - not quite sure what that was supposed to be. Although theres several sub-arctic islands in the area theres not realy anything of note.
-Played around with the Pacific (trying to keep in mind that the area is indeed compressed like you said) Namely:
*Moved New Caledonia a bit to the east and reshaped it (added a forest so a human player could colonise it).
*Reshaped the Island nations of Vanuatu (with one of the most active volcanos on earth), Fiji, Samoa, Tonga, and Tahiti - moving some goody huts in the process to reflect them being on the historical 'major' players in the area.
*Changed Hawai'i around a bit - now the hills are on the big island as its logical this area could be settled. From this island the Kamehameha dynasty (no thats not made up

) conquered the entire archipello in the late 1800s
*Moved Easter Island a bit to the west, although its still not in its proper place it wasnt that close to the Chilian coast.
I also had the idea to have a sugar tile apear on Madeira in the 1500s to reflect the massive plantations they had there after discovering the rescourse in the new world - but I didnt want to fiddle with the rules and stuff
Anyways see if and how you like it.