Yes! Any and all pictures you have of fish are welcome! I didn't spend much time fishing in the beta, so I forgot to get any photos of the items themselves.
Hey @SnowmanH ! We're actually moving away from the "tooltip" style images and starting to use NWDB.info (with whom we have an agreement to do this with) images. Just head over to their website, click the (+) sign on an image, right click to save, and use the "Fish Name.png" format when upload. This will automatically apply the image to any page with that fish name as long as it's using the InfoboxFish template. Here's an example of it in action, I actually just made this infobox last night so any help is welcome getting all fish done: https://newworld.fandom.com/wiki/Medium_Bluefish