How to turn THIS brown to THIS brown?

My hair was dyed black and I bleached it and then dyed it Light Ash Brown.

The result is that it has a bit of a green tone and too much orange for my taste. It's also too light. I wanted something similar to my natural color so that when my roots grow in they won't show and I won't have to keep redying it.

I've been told that my natural color has a lot of Ash tone in it, but I'm thinking because of the bleach from black to blonde (which left a bit of a green tone in itself) it might be better to not put any ash tone in and maybe use a golden or just a brown.

So my question is how do I go from the current light blondish greenish orangish to my natural brown color? Should I use Medium Ash Brown? Medium Golden Brown? Medium Brown?...