Upload field messages' files provide labels specific to an image or a file in general. The English translation distinguishes between both cases, while the German one uses Bild instead of Datei here or there, e.g. for field.upload.basic.select.new. It might be more convenient to keep such translations in sync.

Also there is a typo at assets.browser.actions.confirmDeleteAsset.proceedLabel's value of the assets app messages, unless removing an asset is just meant to make you happy and sing a song - La, löschen.