I think your tiller looks great. Not sure how much experience the guy has with these types of bows - and just throwing in two cents from my experience in giving them away - make sure the guy knows how to brace the bow and watch him do it, slowly. I made a nice hickory flatbow like that and gave it to a friend. He told me he knew how to brace the bow. I turned my back for a moment and he went to brace it putting all the flex on the last foot of the bottom limb. Whamo! It was a good bow too, almost identical to the specs you've got on that one.
Urgh!