Um they look fake to me when enlarged, particularly the house ferns and the palms, but i have to admit that is one fine looking tank. the colors are striking to look at.
I prefer real plants but my fish won't let me have them. I put them in, the fish tear them up. I'm constantly gathering up the stalks floating on the top and replanting them until they die or are shredded. Now have a mix of plastic and silk weighted down with environmentally friendly non lead sinkers. The fish can move them but they can't float them. (the fish have also been known to throw around mid sized resin ornaments also)