1. Opened your jpeg in image editor (Faststone Image Viewer)
2. Saved it as tiff file. Opened the tiff to edit.
3. Straighten for the eye, as best you can
4. crop (this is 5:4, try to incorporate Diagonal and Thirds relationships into the choice of crop, around one or more points of the composition which attract your eye)
5. Levels tool - adjust RGB midpoint
6. Levels tool - adjust color balance
7. Curves tool - adjust curve
8. 'Lighting' tool - a bit of shadow recovery, additional boost of highlight, added contrast (could have been achieved also using Levels or Curves..just an optional), saturation - inside the flower, the color seems a bit oversaturated)
9. USM "unsharp mask" - 100/0.2 aren't typical values for me but seems to work here. Usually for web, i find i use e.g radius values like 0.2,0.3,0.4,0.8 depends on the lens, the detail..and amounts between 10 and 40.
I denoised your image in the previous post (chrominance noise) but that is done in a different app. That should be done early on in the process.