It is a very nice recording. My only feeling is I like the sound of her voice wise in the upper mids more than the guitar sound. I would EQ
(very gentle boost over a wide band of frequencies) the guitar just slightly in the mids/upper mids/lower highs to bring it up in line just a tad with the vocals.
(or roll of some low end and bring the guitar level up to compensate) Listen to how the vocal changes its sound as you EQ the guitar.
As a result of some gentle EQ the guitar might sound as if it has come up in level so it may need to be tweaked down 1 or 2 dB to put the balance between guitar and vocals where it is now. Which is very nice.
You could also not change a thing and just enjoy the warmer smoother guitar sound in combination with the vocals that are very clear. If you are going that way then guitar levels needs to be a little higher to sit well with the vocal sound like it is in this mix.
Just want to add too that my observations are based on wearing headphones, a decent set for sure but they might be pushing the bottom end a little which I suspect they are. But I know how my mixes sound on them which means they are reasonably OK. I will be keen to monitor it properly in my studio a little later. It is only 6 AM here right now. She sounds great too. I found myself listening to her totally and not even the recording. Very quickly in fact. She has got the magic.