Yes from position as my past experience in photography,

You don't have enough space around their head, more concentrate on their foots

Great that you capture emotions on this thumb up

If I did shooting, I'd prefer capture their smiles and make portrait

Great! Good body positions that are flattering to each ans the eye. I'd get more of the background beyond them (maybe blurred slightly) and less of the ground they're walking on, but that's me. Good job!