Middle Nephew's Halloween Outfit Progress

When middle child told me that he wanted to be a yellow butterfly for Halloween, both my brother and I were surprised. Middle child is known as the destructor, the child that will break anything given to him. I sort of thought he'd go for something like Spider-man given that is his latest obsession. Did I mention he's three?

However, middle child kept to the yellow butterfly costume idea for a good month so, that's what I'm making him. Oldest child wants to be Link from Zelda - asking his medieval minded Aunt to make him a t-tunic and hat? Sure! Yeah, it took all of a few minutes for that one.

Anyway, back to the middle child's yellow butterfly. I had no idea how to make a butterfly outfit so I did some research:

Most yellow butterflies I saw looked like this. They were yellow but had thick black lines. I realized that a simple half circle cape with some cutouts might work.

The half circle was easy enough to cut out.  Rather than a normal curve, I made the edges "wavy" to mimic butterfly wings. 

I also decided the butterfly needed a tail so I took some of the scraps - after cutting out a hood- and placed them at the back of the cape. 

The yellow will show thorough the cutouts.  The cape is basically a bottom full black fleece half circle, a yellow poly satin half circle, and a black fleece cutout half circle.   Plus a hood that I cut out as well.

The first few cut outs.  If you've ever made a paper snowflake, it's sort of like that but on a much bigger scale with fleece.  It's not hard but you do have to be careful. 

All the cut outs.  I wanted it to look like it was two butterfly wings, the top and bottom, together. 

This is the cut out over the yellow satin and bottom black fleece.  What do you think?  Will he look like a proper yellow butterfly or does it need something else?