If you're flying on a particularly sunny day, the images may be washed out unless the white balance is adjusted to "Sunny" in the DJI Go App. In order for the settings to apply, you must turn off "Automatic Camera Settings" in the DroneDeploy mobile app in the advanced section of the flight plan.
Please review our guide to Making Successful Maps. If you have any further questions about adjust flight settings within DroneDeploy, please reach out to our Support team at support@dronedeploy.com.