The blue tint makes the scene looks cold. Looks more like an infrared photo to me. Correct the WB + more of their faces with their sunglasses + sun or hot air waves as background would be better.. me thinks.
i dun like to photoshop... it looses the person's creativity.
hence i suggest u play more WB, and the details esp colouration will be accurate and fully captured rather than photoshop.
Use vivid and warm for this photo and it will be good