hmmmm... endling's just a rediculous artist, so anything from him XD
but if you're looking for something else, i'm personally an avid soul eater fan. thing is, the last con i went to (anime boston, june i think?) was packed with soul eater cosplayers. popularity = blending with the crowd... -_-'
but honestly, if you do as good a job as you did with the lilith cosplay, anything will turn out great! good luck at your next con! ^_^