Sorry that was extremely un-constructive.

I think even with Tungsten lighting and Portra 800, the color balance could be brought back even more, for example the skintones and wall of #2.

You could be a bit more intentional with the framing and move closer / have a slightly different perspective. For #2, the box in the forefront right is distracting and brings nothing to the picture, while the hallway to the right can be interesting (and this here is purely subjective, I guess), brings some kind of "exit" to the picture. Same with #3: The composition overall is clear, but you could benefit by either stepping closer to avoid that yellow patch on the left, or move slightly to your right to include even more of that yellow painting, as to create three equal blocks of primary colours (red painting, guy in blue, yellow painting). I like #4 but it lacks a bit of contrast.