Drop the automoton he is great for tribal decks, but doesnt do much here. Myrsmith is also pointless with only 5 artifacts in the deck. I would look to add more evolve creatures, since that is the point of the deck. Phase out the allys as you pick up more evolve creatures. Renegade Krasis wouldnt be a bad start. Also maybe pick up Crowned Ceratok and Sapphire Drake . Not sure how good they are, but they seem like they would help with your evolve theme. I would lose the CoPs and add in Bear Umbra /Sword of Feast and Famine . Getting to untap all your lands is HUGE. Last I would add more fetches. You have Terramorphic Expanse but no Evolving Wilds . Also there are the more expensive fetches that are worth the price tag. Hopefully this minor wall of text has some helpful info in it for you. Good luck to you and +1 from me

Doubling Season . This deck needs it, badly

Once again, thank you, suggested cards have been added to maybe board

Um... drop the bad cards and replace them with good ones. That's kind of harsh, but some of your cards just seem pretty bad, especially in the 40 life giant things EDH format. I don't think Forced Adaptation is particularly good, so Momentum and Primal Cocoon look kind of horrible. Thran Foundry is probably unnecessary - it's a narrow answer card to milling or graveyard shenanigans and there are better options for both. Walking Atlas seems too slow - I'd probably prefer Rampant Growth or any green ramp. Cultivate /Kodama's Reach are usually pretty good. Bioshift may not be worth a card. Enclave Elite is always below curve. Also, Urzatron isn't very good without any way to search for it, especially in a 100 card deck.
Sorry if that came off kind of harsh; you're obviously just starting and hopefully your metagame is pretty casual. Just do the best you can finding replacements and putting them in. Card shops with common/uncommon boxes would be a great way to find some decent cards. Usually anything that provides card advantage (drawing you a card or removing a threat while also doing something else [like giving you a creature]) is usually good, as is ramp and just giant dudes. In EDH you will usually end up getting to 7-10 mana and having big things to play when you're there helps. That also means little aggro guys can get outclassed pretty quickly, but some of them are okay (especially if they can get bigger or provide another effect/synergize with the rest of your deck).

Been playtesting your deck against my Avacyn, AoH EDH deck, I Am Avacyn for a bunch of rounds just now. I think you may need more lands/mana. I keep getting short on one type of mana more often than I expected to. @_@

You think trade out 2 or 3 cards for islands/plains?

I'd say having at least 35 lands/mana sourcesshould help greatly. @_@

Any suggestions on what to take out?

Suggestion from Reddit I am posting here for future convenience

Okay so you definitely need more lands. In total you probably want to run somewhere between 32 and 36. I think I have 36 but I'm playing a much more control oriented deck. Some lands I like which I notice you are not running: Seaside Citadel Glacial Fortress, Sunpetal Grove, Hinterland Harbor Calciform Pools, Saltcrusted Steppe Skycloud Expanse, Sungrass Prairie, Command Tower I don't know if you feel like you want to spend a lot more money, but if you do you could always go for shocks and fetches which are very strong land types but quite expensive.

I would also definitely suggest a Sol Ring.

As for cuts, I would probably consider: Altered Ego, Champion of Lambholt, Crowned Ceratok, Ivy Lane Denizen, Medomai the Ageless, Sun Titan, Amulet of Vigor, Skeleton Key, Strionic Resonator, Unbender Tine, Oath of the Ancient Wood, and Primeval Bounty.

I don't know your playgroup, and I might have missed reasons why these cards work for you so those are just considerations, but that's what I would look at if the deck were mine.

Good luck! Let me know if you have any questions