Unique effects. Depth requires work, you need to fix the flow, do something with the c4d, it looks weird because of the random opacity levels on some places. the lightning sparkles look too messy, place them in a different spot, use them as light sources maybe. I see some soft brushing near the sword but it looks so random. Always remember that when you're adding some lighting related effects, decide a perfect spot for light and don't forget to reflect it somewhere (not only on the render).
This is a style which I haven't seen earlier and I consider it weird because it is basically copy and paste with some opacity adjustments. I know you've been here for a while but I haven't noticed a major improvement.
Anyways, good luck with your future work.