In the first picture my first step was to adjust the brightness and levels of the image. I then changed the hue of the field to purple and aqua blue. I then changed the filter of the image to glow edges and that made areas of the photo glow. Once I got the image to a point where I though the base was well edited, I took a picture from the internet and blended it with the sky.

In the second picture I also adjusted the brightness and levels and used the glow edges filter. However, in this picture Instead of adding a image in the sky I just used the liquify tool around the field.