An oxymoron is a figure of speech in which two seemingly contradictory words are placed next to each other. Oxymorons can serve many purposes in a text, such as highlighting one of the concepts or forcing the reader to think carefully about the meaning of the words. In this case, the words "hard pleasure" are an example of an oxymoron, because usually pleasure is not considered to be hard.
At first he likes it because it would give him more space to crawl around. But later he realized that it would make him a complete bug and try to protect the picture