Photo retouch and remove background

Hi, job as follows 1. Remove the background and keep a small shadow volume, so pictures will look nicely and naturally on a white background (Please use Pen Tool instead of Magic Wand Tool to remove the background). 2. Adjust the color tone and contrast if required. All products are product bottle shots shot against a grey background. Colours of bottles are Blue and Gold Pantone colours. Colours listed below BLUE:  PMS 288 c C: 100% M:65% Y: 0% K: 30.5% GOLD:  PMS 4495 c C:0% M:18.5% Y: 91% K: 47% 3. Remove dirty / white spots if any. 4. Adjust tilt of product so product shot is straight There are 170 pictures and will be provided as high resolution JPG. Attachment is a sample image. Each image is be returned back as a photoshop PSD files with paths and transparent background.