Hi, Lucy.
I'm not a physicist, and my understanding of thermodynamics isn't the greatest out there. But, let me offer a few simple insights on the subject.
The common creationist argument is that complexity of a system cannot increase, because this would be a violation of the 2nd Law of Thermodynamics. You are extending it to information now.
The problem (which has been pointed out to you) is that there are many cases where complexity can be seen to increase in the natural world. Snowflakes are a popular example: there are nice, pretty patterns that look organized, but they form through natural processes from water the evaporated into the atmosphere and condensed in clouds.
In fact, according to my understanding, entropy is technically decreased by lowering the temperature. So, your generalization of the principle behind 2LoT precludes, not only evolution, but also refrigerators and air conditioners.
The point I'm making here is that there are examples where your argument fails. Because your argument fails in some instances, you can't be sure it doesn't also fail in the case of evolution unless you test evolution specifically. In order to show that the argument works against evolution, you have to use
case-specific evidence showing how evolution violates the 2LoT. But, so far, all you have done is present an overgeneralization of the principle, which is
known to be violated by nature in some situations.
-Bluejay/Mantis/Thylacosmilus
Darwin loves you.