i agree that you look pretty balanced based on what you said you eat. and that looks to be far more unprocessed than what most people eat.
but there are a few things that can cause a feeling of bloat. one is eating a lot of fiber, which you seem to be doing. another could be if you are eating something that you have issues with, dairy or gluten being the big guesses. artificial sweeteners can also do that in some people.
one of the easiest swaps i can see would be replacing the crackers in your lunch with a cooked grain like quinoa. you can cook it up the night before [or really, batch cook some once or twice a week] and have it cold with the chicken and the pistachios. another easy swap could be making up a batch of granola and having that and some fruit with your peanut butter instead of bread or crackers sometimes. a baked potato could also be an easy replacement.
-google first. ask questions later.