Well my best guess is this. They both show some lightening of the entire body so theres something like dilute or milky lightening everything up. I dont think (genetically) either are recessive blue phase opal. They are for sure not dom opal or recessive red phase opal. If you could take pictures of their tails fanned out we could see this for sure. All recessive opals (red and blue phase) have a webbing pattern on their tail bars. They are both t-patter chequers. I suspect the top bird to be a sooty or as us racers call pencil or dapple. The bottom one seems to be just a t-pattern check with something lightening the color.
If you mate these two together You will get all babies that are t-checkers like those unless they are both carrying a less dominant pattern gene (barless, bar, light check, dark check). All their babies will have a lightening of the body like that and if that top bird is split for sooty then half their babies will have sooty. If that top bird is homozygous (carrying two genes) for sooty, all there babies will be sooty.