Create an image depicting a scene from the biblical story Matthew 14:28. It's the moment when Peter expresses his faith and courage by asking the Lord to command him to walk on water. This scene unfolds on a tranquil sea, under a sprawling azure sky filled with billowing white clouds. The figures are detailed and expressive, embodying the profound faith and spiritual power of this moment. The digital art style should be sophisticated, employing a wide range of vivid hues and smooth transitions, creating a sense of depth and volume.