Hi Folks, I did another sitting at the studio today; this time with white and black backgrounds. Based on past suggestions, I used a long lens and changed the light setups. This time I used a key and main lights in umbrellas (key in white and main in silver). I did not light the black background but added an overhead light to add a bit of light and separation between the dog and the background-it was in a softbox.

Really appreciate any comments or suggestions.