Hello, & welcome to OSM! Nice work in mapping houses, especially in an area where not many people map! A couple of things to point out though. When you've finished mapping a building (or anything else with a regular shape) please hit the "Q" button, which will make it's corners nicely squared. You've also listed quite tall heights for most of these buildings? Are the 1 & 2 level buildings really 10-15m tall?