Interesting idea, the gold influencers ruin it. Every level was easily won by just clicking on one of them, most on the first try. I would really be much more restrictive with those, and working with not making them them such an easy answer every time.
For balancing, I guess I would be a lot more restrictive with the gold, they're not a bad idea, but it's definitely too easy of an answer as is. I'd recommend limiting their usage as much as you can, and putting in effort to prevent them being a solution. Keeping them off two dots to start as a rule of thumb would make it easy, but you can also cater the design towards making them something to build up to as opposed to the jumping off point.