You're in great shape.
You have a great figure.
You're looking fit.
You have an amazing physique.
You're really toned.
You're well proportioned.
You look very healthy.
You're looking healthier lately.
You seem to have maintained your figure well.
这些表达既直接又委婉,适合不同的场合和语境。选择合适的表达方式可以更好地传达你的赞美和尊重。