Guys, Thank you for viewing my post, I'm glad that you guys enjoy viewing my pictures.
Cjloong, The three big pitchers in the last picture are actually very big compared to the average amp. They're growing at the edge of a pond with very wet medium.
They're not supposed to be that high up (estimated about 2 to 3 feet up from the ground) and it is just totally unnatural.
I found one plant with big pitches but not as big as those giant Amps. I've took one pictures of the Amp basal together with my antic hand phone for size comparison and I'll post that pictures next week.