You can see the grain run-off at the nock of the lowest arrow on the right.
Must be a pvc bowyer.
I've turned my own shafts from salvaged logs that look better than that. ( primitive shoot arrows and bamboo are the most time efficient shafting material for the hobbyist arrowsmith IMO, all the "hardwood" dowels I've seen are dangerous)
Then I met a local arrowsmith and for a very reasonable price, he does all the legwork. The grain on his arrows are perfect. He spends hours at the lumber store looking for perfect arrow wood.
Unless you want a shaft through the hand, quality and safety costs. Money or time, you choose.