I am a big fan of blue aggro Commander decks. They are very fun to play and somewhat unexpected.
Blue is very bad at mana ramping. I would recommend running at least 34 lands (so 2 more). Unless, of course, your play experience with this deck says that you don't have any mana troubles with only 32 land. Card draw can get you a lot of consistency. For mono decks, I am not a fan of
Evolving Wilds. Thinning my deck by one land usually does not compensate for that land hitting the field tapped. I am a fan of
Temple of the False God,
Myriad Landscape, and
Rogue's Passage. I also like, for mono decks, the cycling lands -
Lonely Sandbar and
Remote Isle in your case.
You have a good amount of mana rocks, but I might suggest some others that might be better for a mono-blue deck running big mana creatures -
Sol Ring,
Thran Dynamo,
Gilded Lotus,
Sapphire Medallion. Maybe a
Thought Vessel.
I would suggest
Jalira, Master Polymorphist to help get your big dudes onto the battlefield.
As for cards that can be cut ... What is
Paradox Haze doing for you? Does your playgroup have a lot of cumulative upkeep going on? Does having
Telepathy out really help?
Happy Brewing!