Body type advice and practical fitting questions

[Noahmt]

Our sewing class is fitting a simple jacket, and the advice about body types has become surprisingly difficult to apply. Changing the fabric seems to change the silhouette more than several small adjustments to the original paper pattern. We agree on where the jacket pulls, but we disagree about which style vocabulary best explains the overall effect. For the next session, I want a short list of visible features rather than an immediate verdict. The reference I am considering covers body shape and colour analysis and I would use it to frame questions rather than settle the fitting decisions. Which would you test first here: shoulder placement, hem length, or the weight of the fabric? I would appreciate a repeatable fitting sequence so that the next sample answers a specific question. Photographs of each sample under the same conditions should make the comparison easier to explain during the next lesson.