The change to health makes sense but visually it is a downgrade, I'd consider other approached to it. For instance, instead of extending the bars as you gain more health you would change the color of them starting from the first bar. So when you took damage, the first bar would change back to red before damaging the bars as they did originally. In addition, you could have each bar represent more than 1 hp, having them partially empty when you take damage. Like this you could have 5 full red bars representing 50 hp. 1 blue bar followed by 4 red would represent 60 hp, and so on. If 1 damage is taken, 10% of a bar would break/disappear, 2 damage for 20%, etc. Probably much harder to implement, but would look better than the generic health bars.