Kaloer Clock is a beautiful night clock application for Android. The clock has 5 skins and its layout and behavior is very customizable.
Besides the clock, the application has an advanced alarm. Wake up with your favorite music gently fading in. The alarm plays a playlist with your songs or just a single alarm tone.
The clock can automatically start when AC-power is connected or at a specific time of day, and on Android 4.2+ it can be used as an elegant daydream.
Kaloer Clock is available for free on Google Play.