Hi, and welcome to OpenStreetMap! :)

It's great to see you getting started contributing, and thanks for using the "Review Requested" feature!

I took a look at your edit, and it does need a bit of touching up - playgrounds are mapped with the tag "leisure=playground" rather than "leisure=park" + "name=Playground", so go ahead and update those tags by removing the existing two and adding the corrected one.

There's an OSM Wiki article on playground mapping here: https://wiki.openstreetmap.org/wiki/Tag:leisure%3Dplayground

and I use TagFinder to help me figure out what the correct tags for a feature are: https://tagfinder.osm.ch/

Try to avoid "descriptive naming" (there's a very exhaustive explanation here: https://wiki.openstreetmap.org/wiki/Names#Name_is_the_name_only)

Again, welcome - there's a lot of depth to OSM editing, and it'll take a while to learn the ins and outs - thanks for participating, and happy mapping!