Guess it depends on how broad a species you take M. crinita to be. There are some forms that have pink flowers - such as M. variabilis, although some authorities keep it separate. M. felipensis also can have pink flowers, and has been lumped into crinita by the Fitz Maurices. The same for M. felipensis, all of these can have pink flowers.
But if you prefer separate names, I think that your plant looks closest to M. variabilis to me.