Texturing grass is very different to texturing bricks. My method works alright, but you may want to deviate away from it if it isn't really your style, or it doesn't fit your overall feel. Here are the steps.

Step 1. Grab your isometrical plane that you wish to texturise with grass.

Figure 3.9

Step 2. Apply random pixels of a darker green colour around the plane. Be as random as you can and only use single pixels.

Figure 4.0

Step 3. On top of each random dark pixel, place a pixel that is lighter than the original plain grass colour. So now you will have three colours, ranging from darkest (bottom of grass blade), to medium (base grass colour), and finally lightest (top of grass blade).

Figure 4.1

Step 4. On top of all this, to make it more detailed, apply pixels that are in the middle of your base grass colour and dark blade colour; randomly in between the blades of grass.

Figure 4.2

Step 5. Step back (zoom out) and admire.

Next up is glass, it's not really a texture but you do have to apply some detail to it in order to make it appear both translucent and shiny.