In the end, the deluge cannot explain these things, no matter how much you wish it to.
Actually the deluge explains many of those things well, but not all of them. Fossils are primarily sedimentary. If you want to make a fossil you've got to have lots of water and lots of soil. You need to capture the critter while it's alive; bury it alive under soil and water. The water, over several generations seeps down into the earth, leaving cavity that displays the image of what was a living creature suddenly buried alive. Again, the deepest holes we've ever drilled have revealed much more water than was expected at those levels.