Looks GOOD!
Your style looks fantastic, there is a lot of detail and a very clear theme.
Thank you so much!
I don't really know why it seems to be a bit more "high res" than the original tilesets. This may be due to the gradient effect on some elements?
However, I wouldn't necessarily consider it to be in the same visual style of the orig and ohno tiles; it's much more detailed and almost seems higher resolution, which I imagine was no easy task with the aforementioned colour limitations.
It looks high-res because this particular tileset is heavily inspired by the 'crystal' world, in the sense that it's mainly all one colour, which allows for much more depth in terms of gradients. The other styles I'm working on won't be as high-res, since I'm using more varied colours in the palette which will mean the gradients won't be as deep.
What other style are you working on?
The other styles are still very early in development. Currently, I'm working on white-marble style castle/palace, similar to the original marble/pillar styles but with a much different palette.
I also have plans for a more naturalistic type of style, similar to orig-dirt, except with a blue/yellowish colourscheme with red leaves (think autumnal).
The other styles are still in the 'ideas' phase of development - I haven't fully decided what I want for those styles, or what colour palette to use for them. Any suggestions would be welcome!