Hiya! I would recommend the Creative composition 2.0 course, specifically the section on "Emphasis"
I think this image is a great example of where you could improve on this skill !!
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When I first saw this image I couldn't distinguish the yeti from the background because the values are so similar.
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There is also more contrast in the background than the foreground, so it feels like the yeti should be the focal point since he is so big, but becuase of the value patterns it's unclear where to look.
The best trick it to look at the image really small, like thumbnail size and see if it all blends together or if you can still make out the basic shapes.
If we were to adjust the values, like this the yeti pops out as a focal point.
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If I left the values alone, and just adjusted the colors, making the red a focal point and pushing the bright red colors in the back to a blue, now our eye is still directed towards the yeti who is the most saturated and has red in it.
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Of course you could also do value AND color to really make it pop 🙂
Your image on the left vs adjustments to color and value. This was quick chop job, but I think you can see how the yeti is now a focal point on the right vs the left.
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I love your work btw! I actually got a similar bit of feedback from Will last year about improving my value range. It's challenging with a beautiful pastel style likes yours, but the composition course gives a lot of other methods like sillhouette, color, lines etc to create focal points.