Am I too skinny?

I'm gonna have a link to the pics and for a warning I'm shirtless in one of them so there's that. If you have any suggestions on what exercises I should do cause really all I've been doing is getting leaner without any actual muscle growth.

Pics: https://imgur.com/a/KN4Iy

Would you say I'm too skinny?
Am I too skinny?
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