Create a Renaissance-style painting of a scene from Genesis 21:14. The image should depict Hagar and her son Ishmael in the desert after Abraham sends them away. Hagar is a Middle-Eastern woman, visibly distressed, holding a water bottle, while Ishmael, a Middle-Eastern boy, is at her side. The painting should evoke a sense of devotion and respect towards Christianity and should not include text or words. The style should reflect the harmonious composition, depth of perspective, and realistic human depiction characteristic of the Renaissance era.