Nice map.
Portuguese colonisation methods leave a lot to be desired as OTL.
Seeing your map the colonisation effort is in the region where most gold was found OTL in Brazil. If they find it ITTL the gold rush will be ugly I think.
Wow, this looks like a CK2 campaign, very entertaining. I find it weird that there aren't more tensions between the continental holdings and the colonies, especially in Africa.
I need to ask, when exactly are we?
Very nice to see this updated again. About the chapter I think it's very sad that Constantinople fell to ruin like that, especially considering the history of the place.
Aq Quoyunlun seems gigantic, haw did they manage to ensnare most of Persia? (My only historic knowledge of the area comes from Europa Universalis so I'm not sure that it's all that surprising).
Very interesting developments in Venice.
About the Christian realm to be allied with, Naples seems to be a good one, even if it is to be a counterpart to the papal power in Italy.
About the map, I don't remember existing any mention of Lucca in the last years, what are they about?