The first two photos appeals to me, oves the delibrate overexposure, Colour combination and DOF are very well organised and controlled.
Nice one.
I am not sure would it be better if (for the first two pictures) the fore-most coloured pencil and sunflower seed be in focus, and let the DOF take it away.
Would create a "smoother" feel i reckon.
just my 2 cents