It might look right on the lathe, but once it's off and sat on a surface, it will look wrong I'm afraid. A sweeping curve or ogee will give it definition and create the impression of lift from the surface.
A big mistake many learners make, is to try and make the biggest thing possible from the piece of wood they have.
Something to think about, in years to come whatever colour wood you use, it will be brown. The shape/form is what will remain, always work for the shape.