iMtG Server: Gathering

Here Is The Kraken!!! 64 cards, 0 sideboard 4 {Hinterland Harbor} 5 {Island} 2 {Temple of Mystery} 4 {Breeding Pool} 2 {Flooded Grove} 5 {Forest} 1 {Alchemist's Refuge} 23 lands 3 {Sylvan Caryatid} 3 {Silkwing Scout} 2 {Azusa, Lost but Seeking} 2 {Kiora's Follower} 2 {Archetype of Endurance} 1 {Shipbreaker Kraken} 1 {Lorthos, the Tidemaker} 1 {Inkwell Leviathan} 1 {Simic Sky Swallower} 16 creatures 4 {Quest for Ula's Temple} 2 {Simic Charm} 2 {Autumn's Veil} 4 {Swan Song} 4 {Kiora, the Crashing Wave} 3 {Explore} 2 {Urban Evolution} 4 {Sylvan Scrying} 25 other spells Sideboard

Ok so that is what i assembled so far, but i feel somethig is still uneasy from it
The general idea i followed when i was building it was: "ramp some mana,then kiora or bomb on The board while trying to avoid damage and countering wipes and annoying creatures"
But it's too simple thinking this way so i would like to get it fixed like a competitive deck, even if it is more fitted for casual as for now
Thx  for your advices guys