Hiya Akinsegun,

Welcome to OSM!

We typically work off the idea of "one feature, one OSM element" so in the case of Carragana Park, you can just add the name to the park area rather than creating a new park node with that information.

Additionally, the name tag should be used for actual names rather than descriptions. For example, the cannon you added here might be better mapped as historic=cannon rather than leisure=park with the name "cannon"