There is a critical difference between a Bedrock seed and a Java seed, because each one correlates to it's own specific version of Minecraft.

Change your Java Edition texture filenames to their corresponding Bedrock Edition filenames and replace the ones in the vanilla Bedrock Edition texture pack. Test the pack in-game to verify that these ...

Web app for converting Minecraft Java texture packs to Bedrock texture packs - rtm516/ConvertJavaTextureToBedrock ...