[fabadam]

It's difficult to read these things without having any knowledge of your game, but I'll try:
You lose an enormous amount of money on hands not going to showdown, so it looks like you are (1) folding a lot of winners/best hands and/ or (2) unable to push other people of hands.

Also, your Sklansky graph is very positive: from this graph you look like a weak-tight fit or fold type.

Furthermore, the ratio of $/BB differs a lot between the various lines, so it looks like there are a few small shots at a higher level that distort the $ view.

I've only used the PokerEV software for NL, and in my graph, the green line was a lot above the red and blue lines -- purely the result of picking up a lot of blind steals and small pots on continuation bets I think, plus some successful bluffing.