The first and the last pictures look like Tobacco Mosaic Virus (TMV). The mottling looks like it matches. The others, I'm not sure, but they could just need more of the right nutrients, and they may have a fungal infection. It may be too early to tell for sure what's wrong with those. I don't know if they also have a virus.
Alternately, it could be Tomato Yellow Leaf Curl virus (TYLCV). Although peppers can carry this virus, I don't know if they normally have symptoms.
Here are some links to pictures that led me to believe Tobacco Mosaic Virus was likely the case for the first and last pictures:
- Tobacco Mosaic Virus on a tomato (1)
- Tobacco Mosaic Virus on a tomato (2)
- Tobacco Mosaic Virus on a pepper
I might recommend planting resistant varieties next year. I don't know of any particular treatment for this year.
Varieties resistant to Tobacco Mosaic Virus that I recommend looking into include these:
- Yolo Wonder pepper
- California Wonder 300 TMV pepper
- Capistrano pepper
- Keystone Resistant pepper
- Pimento pepper
- Chef's Choice Orange F1 tomato (also resists anthracnose; AAS award)
- Chef's Choice Pink F1 tomato (also resists anthracnose; AAS award)
- Chef's Choice Green F1 tomato (also resists anthracnose; AAS award)
- Big Pick tomato (probably an F1)
- Celebrity F1 tomato
- President tomato (probably an F1)
- Park's Extra Early tomato F1
Reason for suspecting tomato yellow leaf curl virus:
Here are some varieties reported to be resistant to Tomato Yellow Leaf Curl Virus:
- Champion 11 F1 tomato
- Margo F1 tomato
- Sun King F1 tomato
- SecuriTY 28 F1 tomato