[Salunyar]

Hi, I'm new here and have never knitted before. My mum said she would knit me a sweater if I suss out the pattern and gear for her. I'm wanting a grunge style light loose spacey raggedy knit pattern. Like this image attached (rodarte). I've looked around but haven't seen any patterns that create this look so am wondering if anyone can help point me to the right pattern?

Thanks in advance.