Hum hum. First thoughts.
Happy World, other than the unnecessary ecchi scenes, is a relaxing anime to watch. Its quite random and comical, which is usually too common in most anime, but for a stressful filled life it can be fun to watch anime like these. Its animation is very nice. The theme is much like any other theme, though the third episode theme I haven't seen much; plot is mediocre. However, It was fun to watch. Wee. ^-^
Colors. I'm still playing with them, and yes, I have poor choice is colors. Deal with it. :P
*plays with colors*