My comments and some compilation of other comments:
Europe:
-England needs one more city, either Plymouth or Manchester
-Coruna 1W
-Austria needs a port and perhaps three cities all together, as agreed
Growth_of_Habsburg_territories.jpg
-Copenhagen might be viable after the possible extra row in Germany
-Also Helsingfors and St Petersburg can be on their correct places in the altered map. They would representate the Swede-Russo rivalry
-Bergen would propably be replaced with Trondheim on the new map, Sundsvall might be sqeezing it.
-Krakow is better for gameplay than Warsaw
-Poland should be weak and almost collapsing
Partitions_of_Poland.png
America:
-France should have Halifax or then remove Boston and replace it with Quebec
-Toronto should be removed
-Santo Domingo should be under France's control and renamed Saint Domingue
Saint-Domingue
-If Ciudad Real is on the map, England should have Bluefields (Brits ruled Bluefields from Jamaica
-Not sure about Bogota, Bridgetown or Cayenne
Asia:
-Is Ambon necessary? I would rather see Papua-New Guinea empty and later colonized by England or Germany
-Hangzhou should be removed and Shanghai 1SE, Nanjing is debateable over Kaifeng, which wasn't as important as it used to be after suffering two destructions
-Kagoshima over Nagasaki perhaps, Sapporo can be settleable
-Changzhun should be removed
-I am a bit torn about India, Goa could be replaced with French Pondicherry, but it should be 1E of the Aluminium
-Daibul could be moved 1W and renamed Kolachi, later to be renamed Karachi, around 1750 (Daibul wasn't significant later on)
Africa:
-I mainly like it, as there is still space to settle British Durban for example
-Portuguese Luanda instead of Mbanza Kongo
-Benghazi is not needed
-Indy Khartoum is also possibility (it was founded around 1630s)
-Timbuktu wasn't important anymore in 1700, so it shouldn't be added