That's not true at all don't think like that ;;
The song itself was meant to be on the short and repetitive side. Kind of like short, sweet and to the point versus doing something overly complicated with varying melodies? I don't know how to explain it well xD I'm still learning and experimenting with things like this(like I said it's one of my first songs) so I didn't want to go over the top with it and make a fool out of myself.
As for Luka's vocals, while I myself don't hear much of a "robotic" issue with her, I did have trouble with the bridge...it's probably cause I lowered the brightness in it...and overall I'm still getting used to her V4X bank so I have a lot to learn when it comes to tuning and mixing her.
I appreciate your thoughts though, I've only ever done like three songs maybe that I put actual thought and effort into, this being the first to get completed xD So I have lots to learn and figure out.
I'll try to do better next time~