A city abandoned for 5000+ years in a jungle would most likely be completely buried underground except for maybe the most prominent buildings and then only if there were made of stone, there are cities in south America that have been abandoned for less than 1/5 this length of time and have become completely buried. Nature takes over surprisingly quickly so the city as pictured now would maybe have only been abandoned for 10 years at the most.

I'm not sure what you're planning to do with this location so these ideas might not be fesable but one thing you could do is have the city mostly burried with a visible mound for the wall with the odd tower still poking through and covered in vines and have a section thats been magically protected in a gully where the buildings are only slightly overgrown. You could also have the city burried and make the players dig down to get to the locations that they are after. Just having the paths not visible and completely covered by grass and trees and sections of wall and buildigns destroyed with more overgrowth would make it look significantly older though.