205 series trains (205系), (mainly operated in Jakarta, as well my OC based on them, yoshinari.)

Euskotren 900/950 series

MRT Jakarta 1000 series

KA Serayu

KRL Commuterline

CC206/CC203 locomotives

and more....

mainly railfan (indonesian,spanish (mainly interested in basque railways) and japanese railway scene, south korean railway scene in the past)

fujiko f fujio works: doraemon (main), kiteretsu (side)

man in uniform! (only to PT KAI and Kemenhub in indonesia, and as the inspo for character design or something)

and other fandom or interest (not in particular or just a casual fan, or consider as a multifandom.)