I'm inclined toward lesser pastel enchi and possible super depending on post-shed but you know that already. To me the 'wavy' banding says enchi. I've heard a number of people say that the butterfly stamp doesn't always show until a few sheds later. The blushed head alone isn't enough for me to say super pastel, since the triple always has a very blushed head anyway. Pastel, Lesser, and Enchi all contribute to head blushing independently.
Something else to note - I had a LOT of people tell me my pewter bee male was 'definitely' a sterling bee when he hatched. I'm not sure if people are eager to congratulate me on hitting the 4 gene or if it's hard to ID in pictures, but 9 months later I grow more and more sure that he's just a nice pewter bee. Send the pic out in private message or email to a few people who have produced a lot of enchi stuff. I got different responses in private than I did in public when I was trying to sort out the pewter bee - again not sure if people just go with the flow, only look at a few pics from google images, or are just eager to congratulate.