The configuration you posted should display the mentioned tools in the RadImageEditor, so the cause of the problem is most probably somewhere else.
The tools collection of the image editor might be modified on the code-behind. Please check the following help article that describes the approaches for defining the tools and ensure they are not used on the server-side to modify the tools collection: http://www.telerik.com/help/aspnet-ajax/imageeditor-full-set-of-tools.html
One more thing you can check is whether there are problems with the skin of the image editor. If you are using custom skin for the image editor, ensure it is not broken by comparing it with one of the built-in skins.
Also, you may have custom styles that are affecting the tools of image editor. If you have such styles on the page, remove them temporarily, clear the cache and check if the problem persists.
In case none of the above works, I will need a fully runnable sample that isolates the issue at hand in order to reproduce it locally and to pinpoint its cause.
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