Great work! I'm definitely getting a distinct feel from this track. Maybe I'm influenced by the title, but I'm picturing an innocent child frolicking in a vast green field on a warm, sunny day. You've certainly got the benevolent/relaxing sound down.
On the technical side, you did a fantastic job with the reverb and arpeggio effects. The track sounds deceptively simple, but only because you did so well blending everything together seamlessly. You've got a good ear.
Cheers!