For all the objects exept the hippo I created the textures in photoshop with tile images. I first downloaded the images from the website textures.com then modified their colour, pattern and size.
This was the first look I created for the main arch, but realised it was too washed out and light when compared to the concept art.
Then I developed the look with more vivid colours and it came out like this:
The hippo was textured in Mudbox. After opening the uvs I painted the hippo in this blue colour and added some dust by using a brush with a green colour.
All the plants already came in with their textures when downloaded.