I like the ideas you are working out here. In the first piece you focused more on contrasts, like a series of vignettes strung together. The second piece had more of an overarching idea behind it.
The idea of tension-resolution does not have to be strictly applied to classical sounding material. It is a very universal construct that can be applied to many forms of music. It can be analogous to the concepts of light-shadow in painting and photography, or protagonist-antagonist in storytelling. It is a tool used to bring dynamism, a tool used to generate action and movement, as well as establish context. You can use it to highlight emphasis on chromatic scales and chromatic movement.
For an example take the C major triad and G major triad. Technically they are constructed the same way, just transposed to different pitches. Used in a certain way, they can be made to function as a dominant-tonic, dissonance-consonance, V-I, or in other words tension-resolution. Wouldn't that mean the tension chord is the exact same formula as the resolution chord, yes it is! It is the context of how it was used that gives it the perception of tension-resolution.
Used in a different context, you establish a chromatic scale or chromatically moving chord pattern as the consonance, and use a plain C major triad to contrast as a dissonance.