Simple, too simple?

I like it, but it does seem too simple. It was a little difficult seeing the wings because at first glance, it doesn't look like wings. Maybe make the wings more obvious? The shadow itself looks really sketchy. Perhaps smooth the lines out? Where do you plan on placing the design onto the shirt? Otherwise... good job so far.

I agree with all the above:)

I was thinking lower placement rather than higher...

I'll work on the wings and upload a new version ASAP! Thank you both :)