Where are you located? Are you using fungicides?

The only thing I would add right now is that they look like they're doing well. I might suggest that instead of what looks like chicken wire being used as a trellis, you switch to something you can reach through. Over time, it gets old fast if you have to go around the entire bed every time you see a small something you need to do, and chicken wire can be a bit flimsy.

Yes, any advice is going to be highly dependent on where you are. Are you in Alaska? Florida? Are you fertilizing? Compost? Weather conditions?

I am located in central Wisconsin. I am fertilizing with cal mag plus, a more diluted batch every month. I also used high phosphorus bat guano more recently, to support blossom growth and root development. Other than that, no reason for a fungicide at this point, as nothing has arisen...yet. The plants are planted in 3 inch holes cut in landscaping fabric, then mulched heavily over the top. The fabric acts as another layer of defense against the soil-borne pathogens. The mulch acts as a splatter deflector if you will, it gives a little when the raindrop hits, and also doesnt hit a square, flat surface...it can fall "through" the mulch some. Before planting, I threw out 2 lbs of bone meal in about a 10x10 area and also some composted cow manure. The bonemeal is a major BER deterrent, as I have found growing the Roma.