it cost about 460$, it is not very much for such lens, because many people consider that Canon 100mm Macro worth having "L" mark among Canon lenses, and I agree with them. You can see some sample photos here: [link] And almost all my nature shots are made with this lens I am absolutely fond of it
really? so, there is a quote from wikipedia: "Bokeh (derived from Japanese bokeaji, "blur") is a photographic term referring to the appearance of out-of-focus areas in an image produced by a camera lens. Different lens bokeh produces different aesthetic qualities in out-of-focus backgrounds, which are often used to reduce distractions and emphasize the primary subject"
if you visit the page of *iBokeh, you will see the examples of these wonderful photographic technique
Your skill is magnificent and beautiful. It makes me wonder here how long it took to perfect such wonderful talent but in any case, it was well worth it. You're a true artist and it's photos like these that are the proof.