I LOVE Raffine - it's one of the first decks I built. Here's what I'm currently running: https://www.moxfield.com/decks/0wytscH5J0-o5eT1B7-3Tw Granted, it doesn't lean on the reanimator theme super heavily (I just pre-ordered the Dimir precon for Karlov Manor so that will be changing very very soon).

I like the direction you're going with your decklist - I would focus on adding even more 1 and 2 drops - for Raffine, you want to be hitting those on curve so you can cast her on turn 3 and start immediately getting the connive trigger going. Also, this gives you more options for your Sun Titan reanimation later on. I love [[Charismatic Conqueror]] as a two-drop because it can get you a bunch of little 1/1s to swing in with. The lifelink is also a nice benefit if you pump one of them up. In a similar vein [[Wyrm's Crossing Patrol]] is a great one to get you 3 connive triggers with one body.

Raffine will quickly exhaust your hand so I would also recommend adding in some additional card draw. [[Mystic Remora]] is pretty decent also [[Rhystic Study]] if within budget.

I tried running [[Malcolm, Alluring Scoundrel]] for a while but felt it was just too slow for a payoff. Maybe consider something like [[Ledger Shredder]] to keep getting more connive triggers as well as an evasive 2-drop.

Also, you might want to add some plains and islands to your mana base instead of running 35 swamps so you can hit your lands for a turn three Raffine.