I liked the animation, but I could tell there were a few different styles of character drawings. Also Alucards movements sometimes were -- staccato like which reminded me of a video game. Turns out this is based off a video game. The voice acting was also interesting. Sumi and Taka were realistic speech patterns ( from Japan ). It had lots of bloody gore and the like. sometimes the animation looked so realistic - like i didint know if i was looking at a picture of real life or if it was animation. So that is how i could tell several different people worked on it and style was diff. through the 3 seasons. Overall interesting