wekillpandas (formerly waveband) is my favourite icon maker of the moment. Her icons are clear, crisp and simple but not overly so. Her cropping and coloring are consistently beautiful and she shows amazing levels of creativity I aspire to but could never reach. I almost always save every icon she posts.
... Maybe I went a little overboard with the examples. But I couldn't pick because they're all so STUNNING. Haha.
She posts at weethreekings, which everyone should be watching because HELLO PRETTIES.