Both are cute moments...little snippets of time...the boy waving to the reflection with one hand, while the other hand holds a cracker?? Simply ADORABLE. It could be punched up a bit, as amolitor mentioned, yes, but it's not going to be elevated much more than it is because this shot is about a MOMENT in time. A brief, fleeting moment. Which you captured. So, cropped-off feet aside, the shot's okay. Maybe trim off some of the left side shed. But, keep it, and appreciate it for what it *is*, and do not lament it for what it is *not*. In terms of technique, it is lacking. In terms of a family photo, it is good. Very cute.
Looking at it once more, I would say crop it off right at the mid-line level of his shorts and level with the bottom-right hand side of the shed's siding....tighten it up...crop off some of the left side of the red shed too...eliminating the bad foot-chop and going in,tighter, will emphasize the strength of the shot, which is the window reflection interaction.
The second shot is just bad lighting. So bad it made him squint. and the squinting is kind of what it is all about!!! It's too bad it was shot wide....a tall frame would have included more of him, and eliminated all that empty background. Again...it's a "moment"...an expression..fleeting...not great, but still, it is what it is.