ELECTRIC RAINBOW: New Hair

I decided I needed to change my hair up after having it bright red for the last year and a half.  I bleached a great deal of the red out but not all of it, so I decided to go with this neon rainbow look.  I used 2 Manic Panic Hair Dyes in Electric Banana and Psychedelic Sunset and I used Special Effects Hair Dye in Nuclear Red on the ends.  I'm really happy with how this turned out.  I've never done ombre hair and I always dye my hair myself.  I was actually a little nervous because I wasn't sue how difficult this would be.  It turned out to be quite simple. 
This is how I achieved this look:
1.) Wash your hair with a clarifying shampoo.
2.) Towel dry hair so it's not dripping.
3.) Using a tint brush, start applying the Electric Banana from just above the roots, followed with the Psychedelic Sunset, and finally apply the Nuclear Red.  I used a different tint brush for each color, but you can just wash the brush between colors. 
4.) Comb hair from roots to ends, washing the comb between passes.  Both Manic Panic and Special Effects say comb the color through hair until it becomes frothy so that's what I did.
5.) Apply a conditioning cap (or shower cap) to hair and let it sit.  I find that the longer the dye sits, the more vibrant the color is and the longer it lasts.  I usually keep it o for 4-6 hours or sometimes overnight.  Tis may be overkill but that's just what works for me.
6.) Rinse hair, shampoo and condition as usual. 
This is just what I do, and it may or may not be what you're supposed to do, but for me it works.  I am not a professional but I like doing this myself.  I hope this was helpful. 
These hair dyes are available at:
Manic Panic Electric Banana: at rickysnyc.com for $11.49 or at manicpanic.com for $13.99
Manic Panic Psychedelic Sunset: at rickysnyc.com for $11.49 or at manicpanic.com for $13.99
Special Effects Nuclear Red at amazon.com for $15.32 or at idyemyhair.com for $13.99