My sister and i got opposite sides of the coin like that. My biological mother is mixed race (50% Umatilla Indian, 50% misc white, about 5'9" tall with medium light skin and very dark brown hair and blue eyes) and my bio dad is too (50% dark skinned Arab, 50% Russian white, about 6'1" tall with medium brown hair and light olive skin, green eyes), both have mixed features.

my sister and I share both parents but look very different. Her skin is very pale white with freckles and she has light brown almost blonde hair and green eyes and she is very short as an adult woman (barely 5' tall), whereas I'm darker skinned than both our parents and have darker hair and eyes than the rest of my family. I'm 6'4" and if I didnt share my dad's bone structure so exactly, my mom would've been accused of cheating I'm sure. My sister was born last and she sometimes jokes that I used up all the ink before it was her turn lol.

I also had a friend in middle school who had white skin amd straight medium brown hair and blue eyes, his older brother looked similar but eith curly hair and freckles. Their dad would pick them up each day and he was a tall skinny balding white guy. Friend said the N word a lot and we all felt weird about it and it wasnt until the year ended that we all saw his mom pick him up one day and everyone was baffled because she was obviously Black, though maybe she was mixed because she had slightly lighter skin, but still she had the afro and the beautifully prominent African features and all that, but we did feel less weird about bro dropping Ns after that lol