What are normal ratios for inbound traffic origins?
This can vary massively and depends largely on your SEO, marketing, outreach, networking, partnerships, and more. Sites that improve their SEO will see a larger proportion of organic traffic over time. Site owners who are active and sociable on social media will see a large chunk from those channels. The question is really: “What are you doing to market your website?” and “Does that correlate to your Google Analytics data?” If it doesn’t then you need to re-think your strategy.