Clean, simple, beatiful. The pictorial mark is a dove which is symbolic of God's holy spirit, which allows for a personal relationship with God. The dove's wings are also bible pages and represents the word of god, and the "Diario" part of your name. The dove also compliments your tagline "Dios esta a tu alcance" because it shows that gods spirit is down here with you...at your reach. I used green as a color because it represents growth, which is your purpose, helping people grow in a personal relationship with God.
i liked the image, it is really cool, just the fonts are to thight, and the coloring makes it look religious, the idea is to be fresh, if you change the colors and put in modern fonts it can be an excelent choice