Ya, it looks pretty cool. Now do this, go to <Filters> up at the top, and then go down to <Edge Detect> and then Click on <Neon> A little screen will pop up, play with the settings to your likings. Then press OK. This should add a cool effect to the Image. =D
P.S. I did some searching and fiigured out most of the posts about GIMP are from me. =D lmao