Hi TwoTank.
Your yellow and Brown fine vermiculated patterned fish greatly resemble or are identical to what I call my yellow and Brown L333 breeders. These are among the easiest to breed and most prolific of all my Pleco species although the young do not resemble their parents initially. Here is what my 6 month old juveniles look like and they will need another couple years probably before they have adult patterns. My breeders are definitely not of the more black and white types of L333.
All your striped plecos are very nice fish. The fish in the second photo above, aren't those your Peckoltia compta, aka Leopard Frog/L134? They have more intricate patterns of stripes and spots than mine but have the same colors. I have seen some wild L134 which had mostly yellow bodies with much less brown stripes and spots. Than mine but they were from one shipment which had these most unusual lack of brown markings. DiscusHans USA was the one who brought the oddly mainly yellow L134 in one of his imports almost 2 years ago. I have never seen any living specimens from that shipment in person. He just had sent me photos asking my opinion about what I thought they were.
In time, L134 could probably be bred selectively for the goal of producing a nearly solid yellow strain. I expect the L333 to become more yellow and brown as they approach sexual maturity despite starting out as essentially black and white.

My F1 L134 look like this at one year old. But by the time they are two years old the bands break up and they look like those typically imported with each having a unique pattern of stripes and spots.

Avid Trout fly fisherman. ·´¯`·...¸><)))º>