It does look very good, but if you pay a little attention to framing and cropping, it can look better!
Note how I've removed both the very obvious track panel joints and the out of focus nearfield, both givaways that it's a pic of a model. The composition is also now such that the main focus of the eye is drawn from the primary object, the train, back into the landscape, just by putting the loco about a third the way up rather than dead centre. BTW, these comments are meant as positive criticism, to help you, (and others), take better pics, so please take in the good spirit intended!
edit: Just had my second mug of tea, and noticed, (Doh!!), another neat little tweak. ATM, the loco looks like it's thrashing up a bank because the frame is not quite square. If I correct the horizons by rotating the crop, it now looks like it's coasting downhill, so easily explaining the lack of steam and smoke.