ACR is a great tool for adjusting your nascent HDR image. Continue to tweak your photo by using the sliders as if you were working on a RAW file. Fix the white balance, use the Exposure sliders to add contrast without sacrificing shadow and highlight detail, and take advantage of the Clarity slider to add even more midtone contrast. Go into the Lens Correction tab to get rid of any chromatic aberration or lens distortion. Then click Open Image to head back into Photoshop.