Yup, there are so many flora & fauna stamps here if you like it

. There's also a "folklore & fairy tales" series of stamps which kinda like a comic (sans the word balloons).
The guy depicted in the very old stamps (first link) is
Sukarno, the first president of Indonesia. He had brains & guts. He's a great guy. On the other hand, the guy depicted in the more recent stamps is
Suharto, the 2nd president. He ruled the country for about 32 years, obliterating anyone on his way silently. Scary guy, but our country kinda reached the peak of prosperity during his rule, so yeah.