Funny story, when I first played this game I got it from some other website that had clearly not been updated in ages, so I got a what I believe is one of the earliest public builds of the game (7.02, from 2017). Only later did I discover this place and download the current version.
Thing is, these are not pre-release images. This is how the scenes looked like when the game released and, for whatever reason, Alan felt compelled to retroactively change them in later updates. I've known this for a while, I've especially noticed the different scenes for sphynx, but I never really considered it noteworthy.
Thankfully I kept the older version when I downloaded the newer one years ago, and so I can still see these beauties. Here's that Lampas scene on my version (which has an English translation patch!):
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The changes for Sphynx were also pretty noticeable. I think many other designs were reworked in later patches, though, just in more or less subtle ways. For example, in the current patch Iron Maiden's resting sprite is pretty different from the original sprite, which you can still see from the loss selection screen
I can kinda see why he changed some of these (Sphynx's old designs were awkward in some ways). It's cool that this game got effectively remastered for free, though the original scenes are interesting in their own way.
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