For Graphic Novel Fx you need to install G'MIC (could you elaborate on what OS you use, Windows, Mac, etc.) G'MIC found here:
http://gmic.sourceforge.net/gimp.shtmlTo get the filter mentioned above working in G'MIC, you'll need to follow the same process mentioned here (your OS may be different, but the process is still the same):
viewtopic.php?f=9&t=978On the glossy text scripts, I have not seen any that come that close, although using selections, this script comes kind of close:
http://registry.gimp.org/node/24926
_________________
"In order to attain the impossible, one must attempt the absurd."
~ Miguel de Cervantes