Block Lotto - stacks quilt top & D4P

Quilt top so far - only one more row to go ;-)

Here are some more D4P I have made for March Block Lotto

I don't have any more reds, but I have some different white on whites.  Since just about everyone will be using different white on whites, would it be allowed to use the same red fabrics I have used already, but combine them with different white on whites?  Maybe this is a question I should direct to Sophie ;-)