Photoshop work needed - UK based please

Design details: Hello all,

I need a bit of photoshop help to put some realistic water splashes on a banner I'm creating for a vodka brand. I've done a version already but the client wants it to be more realistic, and it's a bit out of my area of expertise.

The banner will be 2008mm x 806mm so any images used need to be 300 dpi at that size. I've got a couple you can use, but you can use your own if needed. Because the banner is so big, I need someone who has experience of editing pictures and making sure the DPI is right.

I'd prefer UK based designers so I can ring you and give you some details over the phone. Ideally, I'd like this in the next couple of days if possible.

I've attached images of what I've done so far (The 'Torunska' image), and images that they need to look like.

Thanks everyone!
Banner sizes: 2008 x 806
Ideas for the visual style: Realistic water/splashes
Extra notes: