Today I experimented with the same color tiles - this is only one color with monochrome gradient and transparency.
Here's an example of map with it.
Later on, I would like to discuss the use of sprites to create a heterogeneous texture, and use "slopes"-sprites and shading to create 3d volume effect.
All I can get out of this is that you want to show your tiles.
Maybe I should do that, create a thread and call it C:\Users\Lel\Desktop\Stuff and upload all content. Seeing as threads with no actual point are allowed these days.