UI: Shields should add "Blue" over your Health Bar.

[Nektulos-Tuor]

I think as a cool feature, shields should add a "blue" health bar over your current one to make you feel more at ease if you are shielded.

Example:


Perhaps different kinds of shields using slightly different colors.


Also, for TP/MP restoration it should look like this. That way you know you are getting those buffs as well.