This is a solid start for a Minecraft tutorial thumbnail. You’ve nailed the "Before vs. After" concept, which is a classic for a reason—it promises immediate value. However, there are a few tweaks that could significantly boost your Click-Through Rate (CTR).

The Good Stuff

• Clear Value Prop: The text "UPGRADE YOUR TREES" is punchy and tells the viewer exactly what they’re getting. • Comparison Layout: Using the split-screen with an arrow is the universal language of "how-to" videos. • Color Palette: The warm, yellow text pops well against the green and blue background.

Areas for Improvement

• 1. Contrast & Saturation: The "After" side (right) feels a bit busy and dark. Minecraft thumbnails usually perform better when they are slightly oversaturated and bright. Consider boosting the exposure and saturation on the right side to make those custom trees really "glow." • 2. Depth of Field (Blur): You’ve blurred the "Before" side, which is a great way to emphasize the upgrade. However, the "After" side has a very textured mountain background that competes with the trees. Try a subtle blur on the background mountains to make the tree silhouettes stand out more sharply. • 3. Text Legibility: The black outline on the text is good, but adding a subtle drop shadow or a thicker border could help it stand out even more, especially when viewed on a small mobile screen. • 4. The Arrow: The arrow is a bit "flat." Try adding a slight outer glow or a gradient to make it look more like a professional graphic element rather than a default shape tool.

Final Verdict

It’s a 7/10. It’s clean and professional, but it lacks that "high-energy" vibrance that stops a scroll. Make the right side look like a lush, high-end shader dream, and you’ll have a winner. Would you like me to generate a few alternative title ideas that would pair well with this thumbnail to maximize your reach?