Oh most definitley my PMD 6 and 2. I think it was less about the plotlines and more just my work habits then, but I do think for what they were when writing them, the story would have been somewhat weak. It wasn't till I'd say about a year ago I actually got somewhat better at shaping a narrative/plot and so I'm looking on those two and thinking, "Yeah, that's probably Vray, 4th tier instead of the bronze we're looking for."
So one day, when I actually decide to swing back on them, I'll give 'em another go. As for what I can do better, most definitely balancing workload with writing as well as fine tuning a plotline so it isn't written by year in writer me.