Can I get tips to make a diagram of an eyeand ear much easily ??

Kindly refer to the links given below to get the labelled diagrams of human ear and human eye. Hope it will help you. 

https://www.meritnation.com/ask-answer/question/draw-a-neat-and-label-diagram-of-human-eye-and-explain-funct/human-eye-and-colourful-world/6815949

https://www.meritnation.com/ask-answer/question/what-are-the-lable-of-ear-with-diagram/sound/7089014