I have 2 photos: before and after. I've been trying to achieve this effect for two months, but every time something is wrong. Help please. Maybe, some special plug-in is used for this processing? Especially, I am interested in amazing sharpness, lighting, sunny tone.
- Increase the contrast - globally and additional local contrast in the trees and other areas (when you say amazing sharpness I think it's a big boost in contrast that you're noticing)
Warm the image - you can see the greens have gone yellow
In addtion, looks like they've applied some "glow" to the image. You can do this by duplicating the layer, blurring it at say 20-25 pixels, then setting the blend mode to overlay or soft light. That will further boost saturation and contrast as well.
Try to increase the clarity and vibrance, which will give your image more punch