@Kristen-Lango here's another example of how you can use value to create a focal point with your punchy colors. This one makes it more of a nighttime scene -- not sure if that's what you were going for -- creating the focal point by making the rabbit the lightest value and the warmest color, and placing it against its complementary color for contrast:
Here it is in black and white:
Since I also work tradtionally, @AngelinaKizz recommendation to get a value window is great -- I don't use one and probably should! What currently I do is scan/take a picture of my work in progress and then change the picture to black and white to check my values. Whatever works, right?