There are a few things to point out in this picture, first thing, depth of field, this picture makes the mushroom the main focus, whilst the background is blurred. Also, we can see the texture inside of the mushroom. I like this picture the most it is zoomed in, and the texture is smooth.
Button Coptic by Lori Vliegen. I've managed to add buttons to some of my other books, and since I've discovered the coptic binding, i decided to merge the two...and here's the result. I'm really happy with the combination of the tweed looking bookcloth and the vintage buttons.