For texturing, I chose a stylized look to fit the sculpt style.
I started by using a couple of fill layers with procedurals to add more variation to the colours and add a watercolour like effects. I mainly used cloud procedurals, but I also used a Crystals one, that gave it a subtle brush stroke like effect. Afterwards, I used layers with the Mask Editor generator to add shadow in the cavities and highlights on the edges.
I also used two Light generator layers to add more variation to the colours, giving it the darker orange fur bits.
I then painted some darker spots using a brown fill layer and painting into the mask, to keep the workflow non-destructive. I did the same for painting the black and white parts on the fur. I added some yellowish colour into the white parts, to make them more interesting.
For the saddle, I used a similar process: used procedurals to add colour and roughness variation, then used Mask Editors to darken the cracks and lighten the edges. For the blanket, I made the pattern in Photoshop, the imported it and placed it on the model.