Nice game you got there, the graphics are enough for a minimalist game like this, maybe a little bit more color in the background or a revamp later on, but for now its enough.
I would suggest upgrades (faster recruiting, lower scaling of price, more Candidates by Recruiters, ...) after the Transcension, maybe in a different tab, the screen is full enough as it is. And at some point a higher soft-reset that change the title of your Demon, so we have a progression and a goal (I suppose there could be a score of sort that grows with the highest point we got in the game, number-wise, like Demon Power or Number of Souls Transcended I don't know).
I just don't understand the allocating of ritualists part, having more is useless, and having none after an upgrade doesn't matter either, since its just a cap for the rituals we can perform, why not just unlock the rituals when we have enough Ritualists. Except if you have some idea for it later, I would advise to change it.