You're nailing the techs on these Maryla, and some nice poses as well.
I'm guessing this a station you've set up, so I'd suggest the way of pushing these on further would be to look at the angle of light and position the food accordingly. As an example, the first and last are really nice shots but the light is coming from the left, so has nearly blown the whites on the wing bars, and put the face and breast into a little bit of shadow. If you compare that to the face and whites details on number 3, hopefully the subtle difference can be noted. Having the face in shadow also makes the mace whites look a little blue.
I'm not knocking your work, it's very good, just trying to give you food for thought.
Mike