Echinopsis hybrid

Echinopsis is a genus of common and easy in culture plants. For about 100 years, and probably more, cactus growers are creating hybrids within this genus, selecting plants for flower size and color. There are hundreds of registered hybrids, and many more unnamed ones.
This plant I have grown from seed that I received by crossing a plant with large bright-red flowers of Trichocereus type, and a plant with typical Echinopsis flowers with long tube, but pure yellow in color and somewhat small. Both parents are of garden center origin and bare no 'official' status.
The result is what you see in the picture - reach orange colored flowers, relatively large in size.