It's very difficult to pic this mini-oncidinae with an amateur camera! The indvidual flower has less than 0.5cm across (the spike is 5cm long). I put my left thumb in the pics for comparison (I am NOT crushing the 'chid!)
cool I have a hardy crane fly orchid has blooms about that size ...not really pretty blooms as they ar brownish and very translucent ....It makes cool leaves though that only grow in winter outside