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@JDB
No nothing to do with the aesthetics, just don't understand why you would go with ahead tube so long that it limits you to a single set of forks. or custom, when a 5 or 10 deg riser stem would give you the same handle bar position with a for more conventional stem position.
From an engineering point of view geometry of your frame is also far weaker. Without resorting to moment diagrams, the less triangular the main tube structures in your frame are the more flexible it is. The long head tube and low slope top tube put a lot of bending moment through the top and down tubes that would otherwise be compressive loads in another frame. If you are so inclined, try downloading a basic finite element modelling package and mucking around with various configurations, or try some structural/mechanical engineering tech books. The concept of small triangular shapes is used in a lot of MTB frames, GT triple triangle frames and all modern road frames.