Here is how my card turned out. I am pretty happy with the end result. Only I wasn't so happy with how hard it was to stamp on this light gray paper. It is almost like it had a little bit of a sheen to it and it made it difficult to get a good solid stamp. But, I tried my best to darken a few areas with black marker to make it more bold like on the birdhouse posts and the roof on the middle birdhouse.
As for the grass, that was the easy part. I just took a strip of paper about .75 inches wide and started snipping to give the look of individual pieces of grass. Once I was done with that, I just crinkled the ends a bit. Easy peasy!!
cardstock - Papertrey Ink (pink, black, red), Bazzill (green), American Crafts (light gray)
stamps - Papertrey Ink
gems - Hero Arts
ink - Colorbox