Ombre, yay or nay?

I’m really interested in getting everybody’s opinion in this hairstyle. I have been wanting to get this hairstyle for a while, but before I 100% commit to it, I’m trying to get opinions on whether it would look good or not. While many people get the ombre style with natural colours (such as brown roots slowly merged into blonde), I want to get purple and possibly blue.

Typical brown to blonde ombre.

Blue and purple ombre.

Now I want to get my hair kind of like it is in the second picture, but I only want to have about an inch (2 at the most) of blue/purple. I want to get my bottom layer a vibrant blue, and a nice purple for the top layer. To begin with, I want to know what you think of this idea. Secondly, I am not sure whether to make my hair gradually fade into these colours (mainly the top layer cause you will see it more) or if I want to make it just immediately that colour. The whole idea of ombre is that you fade into the second colour, but I cannot decide which would look better

Immediate change.

More subtle/gradual change..

My hair is not this long, but another example of gradual change.

 

This is what my hair looks like now as well, just so you can imagine it,

I would really appreciate it, if all you bloggers could take the time to let me know what you think.