Ah, quirky commanders are always an oddity, but delectation to brew. Now, Mono-Blue isn't exactly my forté, but I believe I may be of aid.

So, I am an adherent to running fewer lands; Thirty-six in Mono-Blue should be a crime. In their lieu, I would recommend many cantrips. If it goes three cards deep, say Preordain, then I consider it a half of a land. Four or more cards, I deem a full land. At least, this is with my experience in gameplay. As such, Impulse is absolutely lovely. Two-mana, instant-speed, what more could a player desire?

Forbidden Alchemy, Chart a Course, Strategic Planning, and Frantic Search are of note.

Baral, Chief of Compliance could be absolutely lovely: For one person, at least.

Spellseeker has never disappointed me. She finds Cyclonic Rift, Preordain, Counterspell, and Finale of Revelation, for ones in the decklist.

Every deck needs graveyard hate! Tormod's Crypt and Relic of Progenitus are both things that Trinket Mage can tutor for, but there are far more options out there. If you are to add Tolaria West could search for Scavenger Grounds.

Quicksilver Fountain is fantastically mean, though effective. It combos painfully well with Oboro, Palace in the Clouds. Target the land with the fountain, bounce it in response, whereupon the trigger fizzles and you are not to be afflicted by infinite islands.

Anent what I would cut:

Flow of Ideas seems slow, sorcery-speed, and expensive to cast. Big draw spells shouldn't be dependent on board-state unless you're playing green and have no choice. Try Stroke of Genius or Pull from Tomorrow.

This deck looks to have some busy early turns, seeing the abundance of 1-3 mana spells. Myriad Landscape enters tapped and still requires mana to ramp. I'd prefer just another Island. Though, a land worth considering is Riptide Laboratory just has quite a bit of utility.

Something I merely wish to put out there; I dislike Temple of the False God very much. That's all for that point.

One direction you could take this deck is group-hug. It draws you cards, keeps others from heeding your schemes, and allows for kills out of the blue. (get it?)

I suppose that's all from me. May fortune be with you!

Oh, I suppose I have a little more. Vizier of Tumbling Sands and Fatestitcher work well with lands and mana rocks, especially if they are to tap for more than one mana.