Give your child some colors and a larger brush that is easy to hold and she will paint the whole city. Her finger muscles are now strong enough to hold a big brush. He brain is also able to work sequentially. So she knows that she first needs to dip the brush in paint and then bring it to the paper.
What you need to know
For children this age the color on the brush does not matter as much as to see how the paint moves on the paper. As her fine motor skills are still developing, she would be making larger hand movements and covering up the whole paper with circles or strokes. It is best not to give your opinions to your child right now on how to paint. Let her explore her own creativity