hi, when rendering my work, i want the colors in the background to be consistent  also the models in the work have all pretty much been made the same color. i am using the same color RBG codes for both the Back ground and the models. but when i render it the model color looks different ! is there a way to keep the colors the same in each render i do. i also am looking to get rig of the refection on the ground how is that done. thanks.