WYSIWYG edit view of text is below image in content but node view isnt.
It is quite possible that the text format with which your field is being displayed is restrictive i.e. it only allows a subset of HTML tags.

I'm going to assume that you are talking about the Body field or more generally a text field attached to a Content type.


Ensure the field_ui module is enabled and go to the Manage display page for your content type. For the field in question, check if the formatter says Default.
Now, go to Administration > Configuration > Content Authoring > Text formats and inspect the first text format in the list.


If you are going to view as a different user, remember that Text formats are linked to permissions and an user's default text format is the first from the list in 2. that he has access to use.