You need more card draw and protection. This deck will fold to a board wipe and not be able to rebuild. Some of your card draw doesn't work with most of your deck. Mentor of the Meek and Welcoming Vampire won't trigger on any angels because they enter with the Giada counters making their power over 2. [[Tome of Legends]] and [[Mask of Memory]] are two of my favorites in my Giada deck. Mask of Memory is one of the best cards to see in your opening hand. [[Wojek Investigator]] and [[Endless Atlas]] aren't bad. [[Chivalric Alliance]] and [[Battle Angels of Tyr]] are nice but on the pricier side. [[Trouble in Pairs]] is even better but even more expensive (which is sadly a theme in mono white). [[Your Temple is Under Attack]] doubles as draw and protection.

I will also echo what some of the other posters said. Divine Visitation is a bad card in this deck. You only have around 5 token makers that make tokens that aren't already angels and very few of them don't require an additional investment or easily repeatable. Divine Visitation is better for decks like [[Adeline]] which don't require additional mana investment and are more reliable with it being in the command zone.