Brassy Ends? How to fix my Blonde color.

 

I am natural dark brunette who once had a very beautiful blonde hair color. I went back to brunette and some months later decided to go blonde hair. I had always achieved my blonde through highlights so that is what I continued to do. I am now fully "blonde" but I feel there are a lot of "problem" pieces throughout my hair.

 

The ends of my hair are extremely brassy. There is random orange/brassy pieces throughout. My hair is fairly long so part of my hair will be a nice golden / light (there are a few different variations of blonde throughout) blonde and then fade to the brassy, ugly color on the end. I have seen that when I get my highlights done it looks as though no color is put on the ends.

 

What can I do (or rather my stylist) do to correct this? I plan on going to a new stylist that specializes in bailage (want to try this!!) and blonde hair color. I have exact and accurate photos of the overall color I'm looking to achieve. Personally I feel like I need a stylist who will take their time with me and actually go through my hair, paying special attention to each piece that needs care. Not someone who just puts on the same foiled highlights over and over again.

 

What do you all suggest?