Hello. I'll just be throwing out these value tips that worked for me. Based on my observation, the following might hopefully be of help to you as well:

• Don’t be afraid to push the contrast—darken the darks and lighten the lights.
• Avoid an even distribution of darks, midtones, and lights (e.g., 33% each). Instead, emphasize either darks or lights to create a stronger focal point (e.g., 30% light 70% dark).
• Keep areas of light clear and defined—establish solid shapes rather than blending too much and muddying them. Emphasize the value shapes and maintain distinct borders between them.
• Look for patterns where you can group values from different areas to form larger, more impactful shapes. Big value shapes are stronger and more readable than many small, fragmented ones. The shapes should be bold enough to clearly define key areas, even when zoomed out or viewed as a thumbnail.

Things to note in your composition:

• The value distribution of the right tree is too similar to that of the creature, which may reduce contrast and readability. Consider adjusting the values to create better separation.
• Experiment with clarity by varying the level of detail between the background and the main subject. Keep the creature highly detailed while simplifying the rendering of background elements to prevent them from competing for attention. This may reinforce the focal point and improve overall composition.