You can substitute color combos for whatever you have. In other words, if you have B91, 93, and 95 for blue and I’m using B12, B14 and B18 for the water.. use what you have.
However, try to replace however many markers I’m using with your combo. If you were to follow a class or tutorial and do not have those colors used you can still follow along.
If you are watching someone color a brown bunny and they are using E30, E31, E33 — and you have E23, E25, E27 you can color using those. Yeah your bunny will be darker and different shade, but you’ll still get to follow the rule of applying the ink to the paper in the same way as the teacher. In other words, if you colored a bunny pink – that would absolutely be okay!! 🙂