A dark waistcoat and dark shirt create a relatively continuous upper area here. The pale tie separates clearly and occupies substantial space within the opening. A small chain runs near the collar. Lighter trousers appear beneath the single-row button front. The picture is particularly useful for deciding which element should lead the centre, while keeping that choice distinct from waistcoat shape.
Try a similar pale tie without additional neck decoration first. Look at the entire upper body from ordinary conversation distance. Should the broad pale area lead, or would you prefer less difference from the shirt? Compare a darker tie afterwards while waistcoat and shirt remain unchanged. Contrast can then be judged independently of the garment’s cut.
Add the collar chain later if you enjoy that extra line. Try it with the actual collar and while moving your arms. Finally assess the lower waistcoat edge while seated with the intended trousers. A hand in a pocket does not supply a neutral fit view. Remove both hands for your own check and include complete front and rear views before deciding.