Starting from the left: I used 1/2 teaspoon of trace elements as a fertiliser, the tomato leaves have turned almost completely yellow and it seems that the small bush has stunted and smaller than average green fruit. I would not recommend using trace elements as a fertiliser at all for any tomatoes.
Second from left: I used 1 handful of worm castings (worm poo) as a top dressing and this seems to have a even green colour to the leaves and nicely ripening fruit on it. I would recommend worm castings as it isn't a heavy food for tomatoes along with a foliar watering with seaweed solution every two weeks.
Third from the Left: None, nada not a thing and It is perfect. The leaves are light green and healthy, open and large the fruit has already ripened and is ready to bear more. I recommend no fertilising apart from foliar watering with a seeweed solution every two weeks.
Lastly: I used a teaspoon of Dynamic lifter. The leaves are very dark green and the fruit is large but not yet ripened, I also noticed that while the fruit is larger it has changed it's shape slightly. If you like darker leaves and must use dynamic lifter remember less is more. These are only 1.2 litre pots so I suggest even in larger pots use no more than 1 teaspoon for each plant.
If you aren't seeing large lush leaves on your tomatoes don't think there is something wrong. Remember tomatoes are fruit and not vegetables, and need less water and less fertilising than Vegetables. If you are growing them into your vegie beds find the driest spot in the bed, usually at the north west end of the garden, It also makes it easier to pick the fruit and helps shade the other vegies in the hot summer months.