I got some pictures, and need help on buying a new board!

I don't know xxxxx about dimensions. I currently ride a 6'0 pb. It seems really skinny, but I love it. I was wondering, I'm 130 lbs, and I'm 5'8. For a fish what size board should I buy (I've been surfing for about 3 years and can now pump, floater, slash,cutback, and snap). Any suggestions? By the way, here are 2 of my pics! 


