I agree with Bruce. BTW Once Miltonia and Miltoniopsis were classified as Miltonia and we used to call them Brazilian Miltonias if they were heat tolerant and Colombian Miltonias (now Miltoniopsis) if they were the cool growing types. From your picture it looks like yours is a Miltoniopsis. They are often characterised by their fuller lip and that gorgeous 'waterfall' pattern on the lip.