She's cute, but too dark and small relative to the rest of the picture. Cropping at the top of the inner (lower) curve of the arch would help. That's how I see the picture on my monitor, since it's too deep to fit in one go.
That's always a tradeoff in vertical shots - a good size versus the inability of many monitors to take in the whole shot at once, but in this case a tighter crop at the top would solve that problem and make for a better picture.