I got inspired by this tileset to experiment with a slightly different perspective. I love the Ultima VII perspective, but it can look very warped sometimes. I attempted to make it a little less skewed by using a 2:1px diagonal instead of a 1:1px diagonal .I haven't actually seen this used in a game before (although it no doubt has been) so I wanted to see what it would look like. I think it is an improvement towards a closer approximation of human perspective. I don't know what exactly this would be called, perhaps it is a variation of trimetric? The Ultima VII perspective is an oblique projection with halved depth commonly called cabinet projection.

The downside of this perspective is it creates unequal sides for bottom and right (perhaps why it isn't used very often in games) and so you would end up having to create 4 angles for a symmetical object instead of just 2 with the Ultima VII way. It also requires a 16x16 grid to line everything up correctly instead of a 32x32 and at least with tiled this means you can't just "paint walls" you have to place each one. It also may not be as immersive, but I think it is at least somewhat less distorted looking, and might experiment with it further. It also has the benefit of not as much horizontal wall hiding of objects.