They look great. (If you can, try to take photos under natural light. It shows more about the plants' conditions. More "wow" factor.). 4, 2 & 1ml (grow, micro & bloom) creates a nice 2.1-1-3.3 NPK ratio. Strength: 192ppm (although, actual ppm is probably higher. The info on the label is just a "guaranteed minimum." It's typically 10-30% higher. Calculating ppms is just a way to compare things, ballpark it. You should measure it and know how actual differs from theoretical. Then you can recreate it if/when you use other products.).
This is a good example of why I was concerned about that "calmag" product you were looking at, with the 12-2-12 NPK label. 3.3 is pretty high K as a ratio. I do about 2.
I you added 2g/gal of that "calmag" product, the NPK ratio would be 3.2-1-4.1. That's pretty high N & K (as proportions). I never feed that much N (until I grew a plant in cactus mix). And, only half that much K. (And, you're only adding 32 & 16 ppm Ca & Mg, respectively. Not much "calmag" considering the change to the NPK ratio.).
You never know. That could be a real winner as a ratio. But, it's better to not delve into those experiments as a new grower. You need to be able to "read the plant." You can't do that until you've had some unchallenging grows to compare to. (And, worst of all, people tend to use stuff like that without even knowing what their creating. It's more of a shot in the dark than a calculated experiment. Knowing that it creates a 3.2-1-4.1 ratio, you could try it once and see what it does. You'd at least know the parameters you're working with, and have a reference point for the future. But, if I were you, I wouldn't. I'd just follow something that's known to work, and get a couple grows under your belt.).