Looking for some feedback on my UMLet diagram assignment. Thanks!

The Assignment Develop a class diagram for a Message class for a cell phone company. Include generalizations for child classes TextMessage, VideoMessage, and VoiceMessage. The Message class has attributes of account number and price. In addition it has the methods getlnfo(accountNum) and calcPrice) The subclasses each have one additional attribute of their own. TextMessage has characterLength, VideoMessage has messSize and VoiceMessage has numMinutes Each subclass overrides the methods of the superclass with their own. No getter or setter methods need to be documented Use UMLet to draw the diagram, then copy and paste (or export an image and import) to a word processing document. Don't forget your name and other required info at the top of the page. Grading Rubric How vou UMLet used and drawing pasted into word processing document- 10.00% Message class drawn correctly-15 00% TextMessage class drawn correctly-15 00% VideoMessage class drawn correctly-15.00% VoiceMessag Inheritance drawn correctly-30.00% r answer will be graded: e class drawn correctly-150096