Visual Kei uses more makeup and has more elaborate and flamboyant hairstyles and clothes than Oshare Kei. Oshare Kei songs are mostly associated with, friends, happiness, love, etc. Their music are bubbly and light. Visual Kei has darker themes. But I'm not saying that all Visual Kei bands have dark themes talking about suicidal thoughts, sex, and drugs.
Visual Kei bands:
MEJIBRAY Song: Divergence
Lycaon (They'll be disbanding in November) Song: Eros
If you want a VK band that's NOT dark,
RoNoCro Song: Give Me A Smile
I'm not familiar with An-cafe so I can't give songs. Sorry. :(