In short, yes, I think the figure will look great during the day and night. No, I don't think it's weird for it not to have hair (see Hippogriff). Overall, I'm not worried about the instalation as it will go a long way into ensuring that the AA stays 'show ready' even under the harsh Florida weather conditions. I believe hair would not meet the demands of the beating the figure will take during Florida summer and maybe even a hurricane. Figures like Kong, Goblins, and maybe Hagrid can have hair because they are inside for the totallity of their service life.