You foot seems to have a high arch in the soft shoe pose as your metatarsals are in a straight line with your ankle bone.
REally, I see nothing wrong with what you have already in terms of range of motion.
Why do you want more?
If you are finding it difficult to keep your feet pointed when you do jumps and such you may need to learn to control your lower leg muscles better or work through the foot more when you jump. Working through the foot at barre will help you with engaging your foot and leg muscles with more control for center floor work.
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