Where do you see any system going from the simple to the more complex regardless of energy flow (?)
Simple one: salt separating from water.
Entropy is salt mixed with water. evaporate the water, and you have salt and water, not the mixture, a lower level of entropy than the solution.
There are pretty complex crystals that are formed in nature, complex geological shapes, for example.
I admit, those are nowhere near as complex as biological systems, but they are counter examples.