I have the impression that Filip uses mostly solid colors although I have another one of his fish that goes from red to green as you go up the body from the tail. Also almost all of his glass is frosted but he is making a non frosted fish this year.
His web site is difficult to navigate but if you see the tabs on the left that say about us, model and guest book then click on the model tab and scroll down until you see figurine and click on that you may have to fool around to find where to click next as I stated in a previous post. If you get in to this area there are two fish to view with better pictures.
Doug