The Hien appears to be in the late war factory finish with solid painted upper surfaces, a finish also applied by Army depots following the decision to instigate factory painting of aircraft after June 1944. They all display the senchi hiyoshiki 'war front sign' of a white band around the fuselage forward of the tail and the wing leading edges appear to have rather deep IFF strips. The aircraft above appears to have the number '09' on the fuselage between the hinomaru and fuselage band, perhaps the 'last two' of the uncoded construction number.
I am also very grateful for the kind permission of author Simon Gifford to share another image (above) of a Hien at Hmawbi from his book 'Rapid Rundown' published by Fonthill Media in 2014. This does not appear to be the same aircraft as in Jordan's photos as the 'number' (?) between hinomaru and fuselage band is applied in a slightly different position. Simon also provided another image of a Hien taken at Changi airfield, Singapore (shown below).