Hi, please read the documentation on the tags leisure=park and leisure=nature_reserve. Even though state parks often have "Park" in the name, they typically should be tagged as Nature Reserves in OpenStreetMap and not Parks. 

https://wiki.openstreetmap.org/wiki/Tag:leisure%3Dpark

https://wiki.openstreetmap.org/wiki/Tag:leisure%3Dnature_reserve

Also, the different landuse features within the state park should not be inner parts of the multipolygon relation. I have reverted these changes