The concept of the project : 

https://mobilite-mobiliteit-brussels.prezly.com/plus-darbres-moins-dasphalte--le-bilan-de-cette-saison-de-plantations-a-bruxelles

I have already draw the new footways , mapillary will follow. I propose to change the area from leisure=garden to leisure=park and add the new plantation area as mostly leisure=garden, landscapping , still to add the urban furniture and some trees.