He's very pretty
But he's not an ISA brown. Or, not a true, first generation. He looks typical of a second generation bird, when someone breeds sex links to each other. the result is a mix of red and white birds, with no linkage of color to gender. so, when you continue to breed them, you get basically mixed breed birds. You can't tell gender until around 6ish weeks or so. The offspring won't lay quite as stellar as the parent stock, but the genetics are still solid and they'll be nice backyard layers.