Don't focus one reference track, it may only be in there to show a production style / vibe.
Ditto as above..always have a good developmental arc unless it says not to. If I skip around your track it all sounds pretty much the same, I can't tell whether I'm in the intro or building up toward the end as it just more or does the same thing all the way through.
Yes the 808's are not great and the whole thing sounds somewhat muffled. Some of the synth sounds are rather cheesy to me as well
Not sure where you are getting your sounds Tom but I think you said you hadn't spent anything on software or plugins or instruments. You need good ingredients to start with so things sound good right out the box. If you don't have those then you need really great production skills and plenty of time to get around it. If you haven't got either then you're kinda fighting a losing battle from the get go. High quality instruments are one of the best investments you can make if you want to progress in music licensing.
See above
See above
In summary yes I agree with Screener, I do agree that the 3rd track has little melody or arc but you have to take it in the round within the context of the other tracks and the listing does say " give your Cues a developmental arc that gives the editors some options"
So if you don't then it's kind of on you not the person who chose the ref tracks
Mark