Hello Péter.
I Reviewed this task (changeset)
A few remarks.  The objects you mapped as a ruin are often a cattle yard. Open space with a fence around it. Sometimes next to a small building. 
There are also several round buildings to map
Take a look at this picture.
https://drive.google.com/file/d/1PJMTFwKrYrcrSC9mn31GuysS_4YhcQ0R/view?usp=drive_link

P;ease do not connect nodes of roads to other features like landuse area.
See the wiki Highway Africa when to tag a trace as 'track' minor roads inbetween a settlement are most to be mapped as 'path' or when it is wide and connect parts to each other as 'unclassified' Residential is more for urban places.
Best regards
