Flowers

Some rocks added in, and some shading on the grasses.

Yellow and red flowers added in, the red is too bright, but I'll tone it down with bluebonnets and grasses. 

River and Yuccas

The river is taking some experimenting to get right, but it's coming along. I added the trunks for the big oak tree on the left, and the yuccas on the right side. 

Next I'll add grasses and greens all over to tie things together and increase the sense of distance. Then I can add red and yellow flowers, and keep adding layers to the river. Also need some mesquite trees, probably on the right side.

Cactus and River

Cactus added on the left side and river rocks sketched in. You can see how the water is going to be shiny.  

Starting to add detail to the rocks.

Detail of the front rocks. 

Bluebonnet Underlayer

Added some patches of blue for where the bluebonnets will generally be. Also added a few layers of paint and medium on the river, I want it to be glassy, so I'm building up layers to fill in the canvas weave. Up next I'll add in the cactus and yuccas, and work on the river.