Hi fidelity,
I think you can safely trust Miah. Like you say he was trying to improve your concept, in which case should be similar to what you think.
I think Miah is a very good designer and will be able to translate what you want into your dream gown, I believe I will not be the only one here who will think this.
My 2 cents, don't think too much, sometimes too complicated designs might just bring down the whole thing. Keep things simple nice, perhaps a certain kind of complexity but mainly simple in a way. If not I think on general, no one knows which part of the gown to concentrate on, as in when looking at you.
I trust that your gown will not turn out ugly, so far of all the photos & info that have been shared, I dun think anyone thought that of their gown. They were able to work with the ALW designers and come out with very beautiful gowns which I believe they all love.
1st appt meaning after signing up? If so, I think that he would have sketched something out for you? At least that is what he did for me, and I believe a few others, so we can visualize what is going to happen.
And when you go for 1st fitting, dun fret too, coz the gown is really like the skeleton, so all the fine touches will really be added towards the end...
Dun worry too much, I believe in ALW, you are in good hands.