You even pulled out the visuals! Hmm... it works, but I was thinking about a completely new signature :P Although I haven't decided whether or not to remove Wailord, so that will be option #2 :D (option #1 being the redesign without Wailord)
You could do a gradient from the color of FPTP1's type and FPTP2's (as a background or border) or change font colors instead. Bright and saturated colors that will make the links stand out.