The intensity of the lime green should lessen once she puts her furniture back in. Put the biggest pieces against the wall you want to tone down the most. If she's a typical girl you're going to have posters hanging on the wall so that will cover some, if nothing else add a large bulletin board. Covered in pink to help tone it down.

I did my DD's room in a pink/lime green combo about 4-years-ago. Here is an old pic of her room (which looks terrible IMHO):

This is wall where two colors met:

We've since redecorated it in an aqua/lime combo.

Looking back on that project I've since realized a few things:

1. when doing the accent wall, the saturation of the colors needed to be similar. The first combo was the bright pink with a paler lime. I had to go back to paint store to get the lime more saturated.

2. At least for my kid's rooms, given the size, amount of stuff they had in the room, bright bedding, etc. doing accent walls is over kill.

3. Given my kids' desire for saturated colors, it still works best to choose what will be the star in the room--the bedding, WTs or the paint. Doing everything saturated is just too much. When redoing both of my DD's rooms this past summer, for the elder DD the saturated color was with a vivid turquoise paint, bedding was black&white dots; youunger DD, we went with brighter bedding and a pale aqua for the walls. I'm really happy (and my DDs as well) how both rooms turned out but it did take some subtle directing to both of them and limiting their choices.

In your case, since your DD has actually MADE her bedding, WTs, etc. I would try to steer her towards a single, less saturated color in either the pink or the lime. In this way, her bedding/WTs will be the star. You can purchase samples and paint on the wall to show her how the different colors look against her existing furnishings.

Showing my DDs pictures from PB teen, etc. really helped to narrow down the paint choices--esp. for my younger DD who would've chosen a more saturated aqua if I had shown her the paint chips. The I bought some craft paint at Michaels in a vivid lime and turquoise and painted the picture frames and a jewlery box to give it that punch of color she craved. The wall color then became a backdrop to showcase these other elements.