My last post here wasn’t umm the best one, it was more about asking someone to make me an icon then about asking for help so I’ll ask a question this time to make up for my last post. So I was wondering, how do I get a drawn/pop art effect?

I want to know how to get this effect in this picture, as well as the pop art effect in this, this, and this picture. I just want to know how to get that pop art effect and that drawn look like in the first picture

Thanks in advance!

I USED ADOBE PHOTOSHOP 7.0