Hi improv - great writing!
Your tomato leaves could be a little greener ... perhaps you have watering problems - too much water can cause yellow tomato leaves. Soak tomatoes thoroughly once every five to seven days, depending on weather and soil type. Let the soil dry between watering and never allow the soil to remain soggy. Water tomato plants carefully at the base of the plant and keep the leaves as dry as possible. Watering early in the day is best. Nutritional Deficiencies If you only see a few yellow tomato leaves toward the bottom of the plant, you usually have nothing to worry about. This normally means these leaves aren’t getting the nutrients they need from the soil or they aren’t getting enough sunshine. Most often this occurs on older plants that are bearing fruit. It could be something as simple as a lack of nitrogen in your soil. If this is the case, check the nitrogen level by taking a soil test to determine exactly what, if any, nutrients are lacking so you can treat accordingly. Feed tomatoes at planting time and monthly throughout the season, as tomatoes have hearty appetites. Follow the directions carefully and beware of overfeeding, which can cause lush plants at the expense of fruit.

all the best!