Nice, I really like doing isometric work and variants on the 1:2 such as 1:3 which I use on a lot of my work, I prefer it because it puts more emphasis of the sides of the building rather than the tops.
As it seems you have a good grasp of the style perhaps you could join one of the collaboration isometric pixel city sites and build buildings for a city, or of course build your own city hehe.
Anyway, good work, its nice to see some isometric work on here.