Humm how to answer the unanswerable.
Most of what you ask is a specification based on what engine is being used so has little to do as to what is expected as to a skill level of the individual. In other words I’ll tell you what to do after you have done your thing.
After that it’s more about you ability to “read” the flow and theme of the game and your ability to add a rather subjective narrative that “adds” a hook to an other wise lack luster presentation.
Not bad but soundtrack makes little effort to add a narrative so adds little to the final result.beyond a single play through
Ignoring the lens flare, all the rage in 2010, The same soundtrack but the image sequences are ordered in a way that matches the narrative of the lyrics, and on the beat, that the viewer is motivated to watch more than once to catch all of the small details.
So as a personal opinion I would look for someone who can add to the flavor that motivates me to want to replay a level and not just do what I tell them to do.
P.S. my fav as an example is still Quake I done by NIN/ Trent Reznor