Pedantic correction: you have some sizes where you’ve written e.g. 20′ x 20′ and I’m pretty sure you mean 20“ x 20”.
(Also, the final note saying pixel art is good for crisp upscaling and you should start with the lowest-resolution version seems very weird to me, though the way it’s worded makes it unlikely that this is a mistake; another sentence or so elaborating on why this is a good idea would be interesting to me.)
My guess is starting with the minimal resolution pixel art mean you can control the upscaling process and don’t have to deal with any artifacts introduced in previous upscaling.
Pedantic correction: you have some sizes where you’ve written e.g. 20′ x 20′ and I’m pretty sure you mean 20“ x 20”.
(Also, the final note saying pixel art is good for crisp upscaling and you should start with the lowest-resolution version seems very weird to me, though the way it’s worded makes it unlikely that this is a mistake; another sentence or so elaborating on why this is a good idea would be interesting to me.)
My guess is starting with the minimal resolution pixel art mean you can control the upscaling process and don’t have to deal with any artifacts introduced in previous upscaling.