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@DFP
If it feels good then its fine. Your inside leg is actually fairly long for your height. I am 5'8" and my inside leg is only 31" on a good day.
Shorter cranks are supposedly easier to spin at higher cadences, because the circle you feet will travel in is smaller. But you get less leverage, so you will need to rely more on lower gears.
Longer cranks give you more leverage and more stability because your feet are further apart. But if they are too long they are awkward to pedal as fast, but this can often be mitigated by the higher gears you can turn.
If you are not uncomfortable or getting toe overlap etc, then I reckon the longer the better.