The biggest hurdle you’re going to face is clients. I watched my wife have the same discussion about a thousand times. It went something like:
Client - That’s still not quite right. I want a slightly darker blue.
Designer - This is the fourth blue we’ve made. Do you have a picture that might have the color you want?
Client - No I don’t but I did see the perfect color. It was about 7 in the morning and I was on a beach in Hawaii. I loved the color of the sky.
Designer - (brief open-mouthed pause) ummmm. OK - well if you could look on Google images and maybe find something that’s the right blue I can use that.
Client - look, I’m too busy for that. You’re the designer.
This is taken from an actual encounter I witness. And thus, I’m an SEO. Want to debate whether the work was successful? - here’s your ranking report. :)
I have a lot of respect for good designers and wish you well. Pick up what you can from CSS Drive.
And try not to let the clients get too out of hand or you’ll end up earning less that you would serving coffee at Starbucks.