Snowboard Filters.
For the first picture I used the Neon filter and changed the colour to purple. The second picture, I used an Artistic filter (don't remember the name, sorry) and just changed the sharpness of the image. The third picture, I made it black and white, added a filter, then colorized the image using hue/saturation. For the fourth image I used the Glowing Edges filter. And for the last image I made 2 layers (a background and the image), added a filter, then used blend tones to merge the colours together.