Looks like a solid list so far. Personally I would make these swaps:

Muldrotha, the Gravetide -> Kodama of the East Tree
Notion Thief -> Stone-Seeder Hierophant
Ramunap Excavator -> Awaken the Woods
Courser of Kruphix -> Tireless Provisioner
Doubling Season -> Spark Double
Roil Elemental -> Quantum Misalignment
Parallel Lives -> Irenicus's Vile Duplication
Crucible of Worlds -> Sakura-Tribe Scout
Harrow -> Elvish Rejuvenator
Roiling Regrowth -> Sporocyst
Cultivate -> Farhaven Elf
1x Island -> Field of the Dead
Meloku the Clouded Mirror -> Animist's Awakening
Trade Routes -> Genesis Wave
Life from the Loam -> Nissa, Resurgent Animist
Zuran Orb -> Squandered Resources

Looks like a good start. Personally I would make these swaps:

Chandra, Torch of Defiance -> Reconnaissance Mission
Ral, Izzet Viceroy -> The Indomitable
Ancestor's Aid -> Irenicus's Vile Duplication
Mizzium Tank -> Valor in Akros
Goblin Electromancer -> Distant Melody

The War Games seems like it'd be fun here

Hey ShieldOfHolyShadows your reasoning makes a lot of sense to me. I admire that you don't want to compromise the nature of deck, and I think keeping it less aggressive and allowing your opponents to make their own choices is really cool.

In light of that, I believe the non-threatening facade of the deck paired with Noble Heritage's built-in protection means you don't need to run cards like Windborn Muse and Ghostly Prison. Also those propaganda effects are slightly antithetical to your ethos imo. Yes the opponent still has a choice, but is it much of a choice? Pay a bunch of mana to attack me (the non-threat), or attack the real threat for free. Also why would they attack you in the first place unless they absolutely had to, at which point you use your aikido cards right?

As for the angel subtheme, I am a big anti-lifegain person haha. I think lifegain is pointless without payoffs (e.g. cards like Light of Promise). In fact, it gives opponents an excuse to attack you because you have the most life. As for having flying blockers, this may be personal bias, but I rarely see someone snag a win because they had multiple connects with beefy fliers. Combat-based wins are already pretty uncommon and when they do happen, the horde/voltron is overhwelming. Having a couple angels on board would not save you.

I think spurring combat between opponents makes more sense than hiding. It allows opponents to take each other out with damage when otherwise they wouldn't be able to. It also makes your aikido cards hit harder. Hiding is slower and aids the combo and control players. Maybe you already considered these but here are a few more warmongery cards that come to mind: Assault Suit, Rite of the Raging Storm, Varchild's War-Riders, Dictate of the Twin Gods, Combat Calligrapher

This is a great list for someone new to the game! Personally I would make these swaps:

Abbot of Keral Keep -> Hoarding Ogre
Seasoned Pyromancer -> Aurelia, the Law Above
Grand Abolisher -> Bitterthorn, Nissa's Animus
Diabolic Intent -> Glimmer Lens
Ogre-Head Helm -> Conjurer's Mantle
Dolmen Gate -> Aegis of the Legion
Relic of Legends -> Sword of the Animist

This is a really cool deck. I love the intent and the list looks great. Personally I would make these swaps:

Windborn Muse -> Ill-Tempered Loner  ^Flip
Ghostly Prison -> Bloodthirsty Blade
Boon-Bringer Valkyrie -> Truefire Captain
Baneslayer Angel -> Ancient Gold Dragon (cool synergy with Ganax!)
Sunblade Angel -> Death Kiss
Lyra Dawnbringer -> Life of the Party
Gisela, the Broken Blade -> Crown of Doom
Brave the Sands -> Curse of Stalked Prey
Crawlspace -> Skyboon Evangelist

Well of Lost Dreams seems good here

This is a great list. You might consider these:

Wild Beastmaster
Ohran Frostfang
Mycoloth
Cultivator of Blades
Cauldron of Souls
The Great Henge

Personally I would cut these:

Elvish Archivist
Lily Bowen, Raging Grandma
Drumhunter
Forgotten Ancient
Biogenic Upgrade
Helix Pinnacle