Pricing Question

How should I approach pricing this drawing? It is 9" x 12". The pink on the sides is just a background to hlep the image fit better on social posts. I am three years into my business need to get my art exposure. When I started, I read a strategy of pricing per sq in, a range from $3-$6 per sq in. I am on the lower side of that as I build. Using $3.50/sq in, this would price at $189, which I would round to $200. Too high, too low, just right? Please give me thoughts/feedback. Thank you!