Well after 8/8 successful validations i have some insights that would be worth discussing.
1- add an option that will allow cropping graphics from google - sometimes only part photo is useful in flip. It will make creating quality flips much easier.
2- 2 min is sometimes not enough. In fact after 8 validations I've never had 2 min. 1 min 4* sec that's my time since validation loads for 10-20 seconds. I think that 3 min will still not be enough to validate more than 1 account constantly (maybe once per 5 validations having 10 easy flips and this will not increase amount of validated accounts (3 successful validation before dead from 2 wrong)).
3- Big issue in my opinion are wasted invitations. I've sent 5 of them and only 1 succeed. I always send them before short interview (Do you have your node synchronized. Will you take part in validation. Do you know when it is. etc.). How about my invited user miss validation the invitation will come back so I could use it to invite 2 users for next epoch?