I don't recall seeing many JR Kyushu front view videos. Here are two in the southeastern part of Kyushu. Really great scenery. JR Kyushu designates the two-car Umisachi Yamasachi as KIHA 125-400. The cars were acquired from the defunct Takachiho Railway.
by 485JNR_NICHIRIN - Kagoshima-Chuo to Miyazaki on the Nippo Main Line.
by Arkibk Train Aki - Nango to Miyazaki on the Nichinan Line.
https://en.wikipedia.org/wiki/Umisachi_Yamasachi
https://en.wikipedia.org/wiki/Takachiho_Railway