One thing I just feel I should mention Perfecto. The playground you posted with the grass I really liked that. I'm not suggesting you go back to it being grass, but maybe turn it to sand? I haven't been to a lot of playgrounds but the few I have been to in my childhood were loose stones, or sand.

Doing a quick search on google "Playgrounds" and do an image search. They have some cool looking grounds for playgrounds. It just feels something needs to break it up a little bit from playground to non playground areas. Like I said, this is just what I was thinking when looking at it. Other than my little nit pick it's looking pretty good. Great work as always, your name fits you well.