Interesting! Would that also apply to the "w", except with it starting with the "v"? I actually like the shape of the "w" a lot at the moment, but I imagine having both it and the "m" as double-width characters would look consistent.

Yeah, I think so. I'm not sure if I'm going to do that because that last part of both M and W would have to be pretty wide otherwise the space between letters would be really bothersome to look at, like the uppercase "I" and lowercase "l" and "i" usually are... And both N and V would have to touch the boundaries of an 8x8 tile.

The W, for instance, would have to look something like this:

I guess it works better for squarish letters. Or 8x16 characters, as the gap between "N" and "\", and "V" and the other "V" could be small enough to sort of disappear.

But I'm undecided right now for what kind of a typeface would look more inline with this game. It could be something more 70s looking, more whimsical, or just heavier and more solid looking...

I did this other font face one these days which I could use instead:

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Playing around a little bit with the 4-palette, 16x16px area per palette limit of the NES... Still got 1 palette to "spare"...



I don't think I'm going to use this anywhere, I'm using it more for practice.
I wasn't thinking about doing that when I started, so that's why there's too much color clash... Some optimization would be required (moving things around, changing some shapes to conform, etc.)

This is how those areas are divided:

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Could use something like this if I were to use all 4 palettes (not counting those for sprites, just using bg tiles):

Let's be honest: I'm not sure Netflix is even going to call me.

They just might!
I'd answer this post with a meme if I were allowed to post that.
https://imgur.com/f8qcAlt

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In order to make that pectoral armor not appear too flat, you may want to consider:



(I made it rounder, but then it was too round. )

Amazing improvement.

Nobody has said anything about this but the lighting on the farthest foot looks a bit weird to me. Am I seeing this wrong? Maybe I'm just confused about the geometry.

I'm not sure, thus why I didn't say anything, but you could be right on that.
I guess the main thing is that the front of the torso should be more in shadow like what bengo said. Then the leg would also be in shadow. The top of the foot, though, should probably be darker.

Considering the position of the light source, the torso would cast a shadow on the farthest leg, but not necessarily on the foot.

I still don't really get this one:

https://www.deviantart.com/cyangmou/art/Pixel-Gameart-101-687177800

What I figured out so far is that the height of my circles are half of the width. But let's say I have to make a tree how do I know how big the top part is and how big the front is?

Because let's say the tree stump in the tutorial is taller and the hole stays the same size then the ratio is lost, right? So on what ratio do you base the sizes on? So how would you edit the ratio for it to make sense with a taller trunk (front), but same hole size (top down)?

Also according to my circle ratio I should make grass that is more top-down than frontal, but frontal grass just looks so much better...

You should be working with cubes, basically. Which is what Cyangmou put there to illustrate and to give a reference.
Being isometric, every width is the same, every height is the same... He did use some perspective there, though (1-point persp), which doesn't make much sense to me, because your other assets would seem inconsistent when you placed them side by side. They would each point to a different, erhm, point in the horizon.
If you're not working with tiled assets, though, and are just making a "scene", then you would make every asset follow the established perspective, its VP(s), horizon line, viewer angle, etc.

Actually, fuggedabout that. Draw a grid and pull lines up from it. If you need to find the center of a "square" draw an "X" connecting its vertices diagonally.
A circle should touch the middle point of each edge of a square, and if it's in perspective, then use the "X" trick to find those middle points.
I'm pretty sure drawabox will show you how to do this, so you should check that.

The size of a square on a grid is unimportant if you're not working with tiled assets. But if you say it's "1 meter" in length, then you all of your assets would be based on that measurement.

You may want to stylize, though, and make assets that are, say, chunkier, more chibi-like, so proportions wouldn't work the same as in real life. But you would still have "your meter" to work with.

As for the grass looking better in frontal, than in top-down perspective... Well, that's for you to decide. If you use frontal view it will look inconsistent with the rest of the assets, but not necessarily bad.

Does that answer that question?

Just in case it doesn't here goes a TL;DR:
Make a grid using the perspective you want. Practice drawing simple forms in it. Cubes, Spheres, Cylinders, Cones. Then base your assets on those forms.