I also agree they look fine. But, it's early, even for Florida. Are they warm enough?
Tomatoes are a specialty of mine, sort of. I agree with the others that what you could do, is remove the lower branches, and add soil, or simply put it into a bigger pot.
What I do with tomatoes, is I keep removing bottom branches, and keep burying them deeper and deeper. As seedlings, I do this when I transplant. When I first transplant them, I put them deep into the pot. Then, as they grow, I remove bottom branches, and add more soil.
It's my opinion that tomatoes are all about their root systems. There will just be a slight delay in productivity by removing bottom branches and adding more soil, or repotting them deeper. Then, when the root system is big and awesome and you can leave them alone - they will reward you with tons of great tomatoes.