In Substance Painter, I made the non-realistic material of the clock tower. Because I wanted to make hand-drawn style materials, I found some hand-drawn drawings of scene design on the Internet as a reference.
In order to make hand-painted style materials, I only made basecolor and normal map of the clock tower. On basecolor, I used noise in the black mask of the color layer and added blur slope, blue directional and Sharpen. This method can produce hand-painted brush strokes to achieve hand-painted visual effects. Luckily, I managed to get the hand-drawn effect I wanted.