needs better focal point, i dont even know what im looking at =[, unless its suppose to be that shiny circle
take out the shiny circle imo and maybe smooth out the picture a bit it looks like a grainy house with a grainy render in it i don't know how to do realism but when i look at realism tags they generally have an environment that seems like a photograph... then they place the render on there that is good quality and bring out some pictures to make it seem realish? but thats total speculation.. this piece isn't very good.. its alright for your first attempt but maybe look for some tuts?