Great job on this one. It's better than most 4/5's, but it isn't good enough to get a 5/5 from me. I just want you to know that even though I'm rating this the same 4/5 as I rated many of your other attachments, this is my favorite sword from you lately.
The crackles need more snap on the left and pop on the right (joke, before you somehow interpret that and actually do it). Honestly, though, I think both or either look fine, it just depends on what you're going for.