Why do you use the PNG format for the flyer packs ? The PNG-24bits format is good for MAME screenshots BUT NOT for scanned documents... The original flyers are in JPEG on TAFA, it's totally useless to convert them in PNG (no better quality since the source is a JPEG, the only result is a bigger size).
EDIT: I noticed that Flyers were retouched/modified (i.e.: the 3 Count Bout one were the SNK text is missing and the background color is no more like the original (all blue, instead of white)