It should apply them automatic, but you may need to enable the resourcepacks again if you are updating.

Updated KehaanFarmingValleyResourcepack_1.10.2_v1.2.0
* Fixed a issue with the RP saying it is not working (Even though it did)

Added KehaanModpackPaintingsRP_1.10.2_v1.0.0

This adds the following paintings to the game: