It only really matters when you apply for a job. People don't care that you've done tutorials. But for a job portfolio your example pieces shouldn't include tutorial content. In general it's better to have examples of work that show that, not only do you have skills, but you're also creative. You want to demonstrate that…
most professionals have seen the tutorials and know you followed it step by step. there is nothing wrong with following a tutorial step by step as long as you understand why you are doing each step, but the work produced from it does not really show you understand. something you may want to try is following a tutorial but…