The Fleas are just awful.
Your room sounds ... well IS suspect - too small with not enough room treatment. It's so phasey you are getting notes sounding out of tune while they may be perfectly in tune. This is a common problem with pianos in the usually home room and recording. Big bass traps will do more for your room - or at least stick them behind the mics.
It's a Steingraeber 205 for gosh sakes - it should sound like heaven when tuned up and miced well!
is worlds better - although it's still not up to par for that wonderful piano.
Where are you? Europe of USA?
Thanks for posting AWESOME!