April 14th is the one I like. Your subject stands out better against the background and the concept of hot air balloon using helium balloons is great! And there’s a great expression.
I see they were taken last summer. My initial thought was “too bad the girl’s hair is the same colour as the ground”. I thought the grass had not grown in yet this spring, then I noticed the date. If the background were grass or sky she would be separated from the background better. It’s probably hard to see through the viewfinder and you may not have had a choice while trying to get the action and framing. Plus it’s a pretty picky point, but I’ll throw it up for consideration anyway.
In April 16th, she has very pale skin and the light is kinda flat. Look at the April 14th photo, see how the shadow helps define the features?