VERY cute shots. Some might quibble about the overlapping blades of grass in shot #1, but the pose and expression, and the board fence? Just super-cute!
The dandelions in shot #2, and the crossed feet and down-in-the-grass pose plus the camera being low??? Nice work. Yeah, the light's bright and sunny, and he's squinty--because he's IN THE SUN!
As family shots, these are excellent. Great color, good exposure, good focus, good composition, good expression,good balance, good poses. The entire compositional space has been well-used. THESE are sterling examples of how and when to orient the camera horizontally. A lot of people just do not "get" the idea of using the compositional space fully, and effectively; these two pics are again, sterling examples of effective horizontal composing. Not just holding the camera in horizontal mode, but making two photographs that have a subject that is in perfect harmony with the camera's orientation.
I will go so far as to say that I would not further crop one,single millimeter off of any side or edge of either of these images.