How to Replace Vanilla Paintings with Kehaan Modpack Art
This resource pack works by overriding the textures Minecraft already uses for its paintings, so you do not craft or place anything new. Your job is simply to make sure the pack is active and that you are using the right painting items.
Confirm the Pack Is Loaded
Open Options, then Resource Packs, and move the Kehaan pack to the Selected side. It must sit above the default pack so its textures win. If you run other painting packs, put this one higher or lower depending on which art you want to see, since the top pack overrides the ones below it.
Place Paintings Normally
Craft or obtain a vanilla Painting item and place it on a wall as usual. The game still picks a random painting size and motif, but the texture shown will now be Kehaan-themed art instead of the original. Break and replace the painting to reroll which motif appears.
Check for Missing Textures
If a painting shows as a purple-and-black checker, the pack is either disabled or another pack is overriding that specific texture. Disable conflicting packs and reload with F3+T. Note that only paintings the pack actually replaces will change; any vanilla paintings it does not cover will still look original.