I SEE IRON, CALCIUM, AND POTASSIUM DEFICIENCIES.

Does that plant get enough light? Obviously it's a picture; so, it's too hard to tell, but from the color and the thinness it looks like it's not getting enough light at first glance. It's extremely hard to tell with those pictures. We are of course ruling out any other possible environmental factors, pest, or disease for this diagnosis.

The older tomato leaf on the top right shows a potassium deficiency.

The younger tomato leaf in the foreground shows calcium deficiency.

The sweet potato looking leaf on the bottom left shows iron deficiency.

Can I get a better picture?