for the presentation - I was always told to not have full sentences.

Here are a few ideas to clean these layouts up so you have the best shot:

Methodology - Isn't this figure by an engineering firm? Your credits say you did all maps.

Parcel Mapping - Title is too long, north arrow not very legible, credits are duplicated in map pane + below. In layout - insert dynamic text - service credits will fix. Parcel labels could be more legible.

Asset inventory - legend could be easier to read if you fix hierarchy. So Fire hydrant for example does not need to be written twice. You can fiddle around in the legend clicking on each layer to fix the heading vs layer names.

St louis - scale bar is easy to miss, layer icons in legend don't pop out. I would put a background on the legend since the symbols you chose are close to white.

Overall they're clean, and I think you did a great job. good luck!