Sugimori art of each Pokémon is owned by Pokémon/Gamefreak/Nintendo.
I merely took 120p versions of them and rearranged them by:
-complete current evolutionary line (position of family within group determined by first known members), including Mega evolutions
-primary type (..Geodude is Rock/Ground, therefore belongs to Rock, while Rhyhorn is Ground/Rock, hence in Ground)
It took me 2 days to copy/paste it all together and to calculate and figure out how to arrange each group so they fit together into the big picture nicely (even trying to make the types orders feel natural next to each other). It was a big messy puzzle XD, but I'm satisfied with how it turned out now.
There were 5 trouble makers (that change primary type upon evolution) which I solved as follows:
-Eevee: the only logical thing to do here was throwing the complete family in Normal
-Swablu: final stage decided (not tough decision since Normal is like a default type anyway)
-Azurill: it being the odd baby, it was easy to just stick with the parents type
-Steelix: most problematic, since Onix is perfectly a Rock type, and one option here was to put them into Ground, since Onix/Steelix share this secondary type, but this went against the #1 rule of primary type, so I chose Steelix' type.
-Fletchling: 2 of the 3 stages, including the final one, are Fire, the first one is merely "Normal", straightforward choice for the line: Fire.
For me as a fakemon artist, I feel it is crucial to have this picture in my head.
Its great to look at it, seeing each type evolve through the generations etc.
One of the main points to making this is to get a better feel for what type lacks "generic" Pokémon the most or the least etc.
For example, until recent generations, most Ice types were just other typed Pokémon with Ice as their extra type, which is probably why the last 4 lines have all been pure Ice types.
Its also easy to see what type lacks what kind of evolutionary families, like Poison, who is mostly made up of generic 2 stage lines,
as is Dark (having had no 3 stage lines until Hydreigon), but at least it's more exotic now with a few Megas in the mix.
I think Gamefreak actually is slowly gaining on balance.
The most obvious remaining oddity right now is still the Flying type. Will we see a handful of generic primary Flying types next gen or will it stay like this?
It's cool to see that Fairy isn't that much behind even though it was just introduced!
-Volcanion in Fire (not even revealed yet)
I went and added colored backgrounds to each pokemon according to their secondary type!
EDIT 15.1. Added:
-21 ORAS Mega evolutions/Primal forms
Still missing now - waiting for sugimori art/reveal:
-Hoopas Dark forme
-Volcanion (Fire group)
-all Megas/forms introduced in XY sequels
-inevitable Zygarde forms for XY sequels