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Things you got right IMO.
Pose isn't bad
Whites are not blown on the dress
Skin tones look good
Things you could improve upon....
Expression... not so much your fault.... but... if you hold your hand up to the screen and cover her mouth.... looking at her eyes... no smile.
Head placement.... moving her over 1 step to her left would have placed the head in a clean spot. The pillar/water coming down on top of her is distracting.
Objects in the background... person and looks like a trashcan... would remove them in post. Or, at least wait a second until the person is out of the scene.
Where the grass and stone meet... I would clone that in with stone as well. The more you can remove distracting elements from the scene... this puts more attention on your subject.
If the background elements were not really important to the image... I would have shot wide open to blur everything out in a few shots just to eliminate the distractions.
All in all...
Not bad for being new to this.... keep practicing... keep an eye open on how you want to build your shot... from the pose to the items all around you.
Hope this helps.