First off, love the title of the game.
There's a lot of choices, and I had fun going through all the options for the purchases. I eventually got into the habit of just doing a bunch of contracts in a row until I had a bunch of money, and then making some purchases. Not sure if there was supposed to be some mechanism that would drive me to evenly spend time between contracts and purchases.
I see in the screenshots that there appears to be some kind of progression, but it didn't seem obvious how to do that; or at least, I couldn't figure out how to make it happen.
I don't know if this was deliberate, but the way the placements worked, I had to essentially pick up and drop things multiple times to get them on the right spot because of the camera angle. A placement indicator might have been helpful here.
Otherwise, this felt pretty good to play. I liked the combination of sort of cosy game combined with an assassin game, though I'd have liked to see some more mechanics for the contracts (e.g. even something simple like getting a description in the contract and having to find the right person, rather than just having them marked eagle vision style).