This priest surely committed to his celibate there...
Cheap art will be just that. The true value lies in commitment and hard work. This is just a tool and without a creative mind operating it the results will hold no magic. Did photography kill painting? I think both are doing and developing rather well.
Pixel Perfect Polygons has recently released a new Grass Mountains Landscape that provides an excellent 64 square kilometers of playable area. The pack will help you build different AAA scenes, so check it out.
Texture size: Up to 4K – One 8K BaseColor template, downsize as you wish.
 Material Instances
 Material Functions
You can learn more here.