Artscape: Preparing the next update(looking for suggestions)

Some things about me, I am an full time iOS developer with 1 year and 8 moths worth of experience and this is my first solo project built outside working hours. Finally I managed to launch my baby after 8 month of development and I must say I am proud of myself and what came out of it. Now I humblly come here to request your feedback and opinions, what else would you like to see from a daily art gallery app like Artscape? So far for the next updated I prepared a painting recognition feature and also will develop custom themes for the app. I'm curious what you guys would like to see more and would make it more enjoyable for you to read about art. What is a must have iOS feature in an application for you? Thanks a lot.