Artist Christopher Cayco just completed a big Pokemon poster that includes 800+ different Pokemon and over 1,100 Pokemon in total (because some were drawn twice, like Pikachu).
This is actually a re-drawing of a 2016 poster he did, now updated with new Gen 7 Pokemon and with twice the resolution.
Check out a video timelapse of him drawing the entire thing above.
You can check out the complete poster below and buy it here ($30).
Big Pokemon poster:
And a closer look at some of the details: