Here's an album of my previous 1.8 game where I went Jurchen tribe -> Buddhist Manchu -> Qing and got the Silk Road achievement. I also made a beautiful giant Mexico CN which Paradox decided to patch out (for some unknown demented reason), which destroyed the little enjoyment I could find from playing the colonial game.
Highest income by far, fully westernised by around ~1520 (didn't want to vassal feed as an extra "challenge"), world trade leader in almost all trade goods and production leader in most. Biggest religion in the world with something like 1.5k provinces.
It was a stupidly easy and frankly rather boring game. It's the first time I've ever finished a game and by ~1700 I just had the game on full speed occasionally unpausing to do trivial things. Eu4 certainly fails to be interesting in the late game.
My CN managed to suffer a huge rebellion and lost territory while I wasn't paying attention for a few seconds (damn colonial nations suck at surviving), enraging me to no end. Perm is a vassal which I subjugated very early in the game (by no CB declaring and marching across Siberia) just because I didn't want to bother sieging down a thousand Russian provinces in the late game. Didn't want to take Africa but I was too disgusted by the income Sevilla was making.