The 5 watercolour techniques I enjoy using to create texture in my paintings: Dry brush, splatter, plastic wrap, moulding paste and granulating pigments on a rough surface paper.
Terracotta Pot mainly is created from French Ultramarine with Burnt Sienna applied wet onto a very Rough surfaced paper to get the dimpling textural effect. French Ultramarine and Burnt Sienna are granulating pigments which will create these pits and grooves as the paint particles sink into the bottom of the paper.
Dry Brush Technique
A dry brush is run across a dry paper for rough textured look. I’ve used Dry Brush in these next 3 images: Fence railings, Shoreline, Dry brush bark.
Splatter Technique was done half on damp paper and half on dry paper to create an illusion of depth; near and far. This is a very effective method to help with your depth and perspective in your paintings.
plastic wrap technique is simple to use, just apply wet paints then quickly place the wrap over the paint and let dry.
Peel off when dry and voila! You have texture, great for rocks, trees, foliage, flowers, and a host of other subjects.
Moulding paste on paper or gessoed masonite, let dry.
Splash watercolours on and let dry.
The texture from the moulding paste really comes through and you can create quite a number of subjects using this technique.