What happened here?...

So I printed this Horsea from printables here, and came back to this.. Removed the supports and it looks like this.. Additional pic in comments.

Is this a faulty model? I sure fixed it with netfabb before slicing..

Is this something error while slicing? I'll reslicing try later maybe..

Did something happened to the Z axis? Is there not enough support?

This was printed on my Prusa Mini+ with bondtech extruder and revo micro hotend, 0.3 mm layer height with 0.6 nozzle, temp 235. Filament is Polymaker Polyflex.

Any help is appreciated..!