What Pro features should we focus on first? - Sunshine Photo Cart for WordPress

With the core set of features built and ready (and being fine tuned by our beta testers), what features should we focus on going forward for the Pro version of Sunshine Photo Cart? Please pick up to 3 options only.

Derek Ashauer, developer of the Sunshine Photo Cart WordPress plugin, has dedicated over 10 years to developing and supporting this effective tool for photographers. His expertise in the WordPress platform extends beyond this plugin with over 15 years of experience in building client sites. Derek's work centers on enhancing the functionality and profitability of client galleries for photographers, showcasing his commitment to supporting their business growth.