Impastos, that is, texture effects, help make your material a lot more original! Plus, they are very easy to create
Impastos are spots of paint thick enough to retain the mark of the instrument (paintbrush or painting knife) that laid them.
You can work on the entire surface of the painting or limit the impastos to certain areas of your composition to make them stand out.
To create original textures, you need a medium called "modeling paste" (pâte de modelage, in French), a painting knife and various instruments (fork, comb, rag, coin) for making marks in the paint. Give your imagination free rein!