The Sendai Hakurei No Miko from the very popular fanwork Osana Reimu and its sequel Reireimu, a story about Sendai Miko, a young Reimu, and an adult Rumia. This brown-haired version looks almost identical to Reimu herself, only taller and more endowed - and usually wearing some sort of Mask.
Other variations exist which show her taking more from the M.U.G.E.N version of the character, such as her outfit and pitch-black hair. Again, a mask is often used to distinguish her as the Osana Reimu Sendai.