1 Clean your brush and use clean water or a second color to paint inside the outline, being sure to blend with the outer color. 2  Leave the middle white. 3  For a dark center, paint it in once the flower has dried.  For a light center, paint it while the flower is still wet to blend.
The main function of vitamin A is to support vision, especially in dim lighting, by creating pigments that are needed to help keep the retina of the eye healthy. It also helps produce the protein rhodopsin, which absorbs light in the retina. In addition, vitamin A helps support the growth and development of the cornea and other membranes of the eye.
1 Vitamin A is also important to maintaining healthy skin and it helps the body to resist infection. 2  Benefits of Vitamin A Vitamin A is important for the immune system, and it keeps skin and mucous membrane cells healthy.3  Vitamin A helps to fight cancer by inhibiting the production of DNA in cancerous cells. Foods That Contain Vitamin A Vitamin A can be found in both animal and plant foods. 2  It is found as retinol in animal foods and as carotenoids in plant foods. 3  These are compounds the body can convert into vitamin A. The single best source of vitamin A is liver.