In addition, there is a recommendations section on the website with hints to make your experience go smoother
Tall, Stiff, Detachable Wing Collar The collar of the full-dress shirt is distinguished by its folded wings and its height
And brown shoes go fine with brown trousers because while the color is similar, the difference in materials between trousers and shoes is enough to visually differentiate the two (unless someone is wearing leather pants, but Ill assume that excludes most Permanent Style readers.) I would personally favour an oxblood (close to Horween colour 8) or navy pair, also I think most suedes would work in any colour for a more casual look, with black suede registering less formal than black calf etc
If you had your heart set on having a train, think about choosing a veil that has a train
The look should feel effortless but never accidental
Without that an even otherwise well done drawing wont look right