BuddyPress.org

1. Themes
Current gallery/media plugins (free and paid) compatible with BuddyPress use the bp-default theme structure. So either you create a custom theme that’s a child theme of bp-default theme or be prepared to customize any other WP theme or custom BuddyPress theme to work with the gallery plugin’s.

2. Image storage
Images are physically stored in your server for some gallery plugins. Other BuddyPress-compatible gallery plugins require you to store your images in their servers and make you pay for extra storage.