I started with a simple lightbulb and dirt.
Added more dirt
I started adding texture to the dirt.
Now I started adding blue highlights to the edges of the lightbulb.
Smoothing it out
Here comes the cactus
Grooves of the cactus
More color and starting the cactus needles.
More needles and a flower.
I added purple shadows to the flower to give it depth.
Highlights on the bulb.
Here I started the shadow