I don't know if UML 2.0 compliance requires "cubes" instead of "cylinders" for a database representation - my intention was to point out that we don't have to show things exactly like Sheil - visual deviation seems to be ok with the examiners as long as basic UML compliance is kept in mind and the diagram represents the design clearly.
@Srinivasan - to be honest, mid way, I was really considering changing my UML too. However, having spent days and weekends on the solution, I just wanted to submit and get it over with
so I didn't do that.
Best of luck to you.
Rgds