Portraiture isn't my speciality, but the skin tones are far too warm, making her look like she's glowing or been out in the sun too long. I would pull back on the saturation levels to make the skin tones look more natural and possibly cool them too. Also there are quite a few blown highlights in the sky which stand out due to the high saturation. There are two possibilities to avoid this, either expose for the background and use some fill flash to get the exposure right on the model or use a grad filter on the sky, trying not to cover her leg; you would need a tripod for that ideally though, which may not be practical. Compositionally, you have chopped the side of her arm off, so take more care while framing.