It looks like a nutritional deficiency. Organic or conventional fertilizer, you have to balance your inputs. Compost and things like chicken manure are very alkaline. Unless your soil is very acidic it can make an already alkaline soil worse, especially for acid loving plants.
It looks like an iron deficiency. Tomatoes will show yellow at the base fo the youngest leaves first then chlorosis will spread depending on the severity of the deficiency.
Iron should correct it, but do not use ironite. It is made from tailings. Sometimes it is not the lack of iron or any other element in the soil, but a pH that is not optimal. In soils with a high pH, micronutrients are less available as they are bound to other particles.
Low pH soils can also bind elements. In the case of acidic soils, phosphorus binding may be a problem. Phosphorus is mostly bound in soils with just a small amount available to plants in solution. Usually the phosphorus is bound to calcium. The P-Ca form is the more soluble form. In very acid soils phosphorus will bind to aluminum and iron more permanently.
Get at least a baseline soil test. Ask for organic recommendations and they will advise you how much compost, manure, and pH correction you need to do to keep the soil balanced for what you want to grow. If you have master gardeners available they can tell you how to collect a soil sample and where to take it. They will also help you interpret the results.
When your plants show deficiencies or toxicity it is usually because of imbalances in the soil. The goal of organic should be to feed the soil. If the soil is in balance, then the soil feeds the plants. To feed the soil, you still need to balance inputs and put the right plant in the right place. Organic requires constantly adding organic matter to the soil. Usually a lot of compost frequently from multiple sources. Organic fertilizers and crop rotation.
Most back yard growers don't rotate much because of limited space, but they can rotate crops within a year. For a soil to be sustainable, most of the nutrients must come from the soil. If plants are dependent on continuous inputs or fertilizer or water to be maintained, then the soil really isn't being fed properly.
https://www.haifa-group.com/knowledge_ce ... _symptoms/
https://www1.agric.gov.ab.ca/$department ... /agdex6607
Happy gardening in Hawaii. Gardens are where people grow.