Hi Rona. The picture didn't upload. There seems to be a problem this weekend but mine have worked on the 2nd attempt :)

I can only speak from experience of tiles and Karndean. We have two dogs, live in the country, we and the dogs are in and out all day. The dogs both used to slip even on terracotta ( back in the old days), and, i'd be worried about shiny tiles, especially with larger dogs that could slip far more easily and cause themselves damage. The tiles were dark and had to go, as they showed up the dirt. The grout was the biggest problem, as it was easily stained, and just not practical with dogs. We swapped to Karndean around 5/6 years ago and haven't looked back since. It's simply the best, unscratchable, hard wearing, versatile, easily cleaned surface ever. We live in an old cottage and it had to fit in, so we went with Van Gogh, a floorboard effect look, complete with etched woodworm holes! Love it.

Composite Deck? Once down you'll have very little maintenance for years. You could find a colour that matches your Ikea tiles too. Let me know if you need any assistance.

As others have stated above, the gas hob arrangement just isn't safe and it needs to be ideally 300mm from the edge. That would be the first thing i'd resolve before worrying about new hobs. I think you're looking at a new worktop for the island then depending on the base units and any built under appliances you could then have a new hob safely fitted. Most hobs upto 750 wide have a 560*490 cutout, 800 and above need a bigger cut out. The other issue you may have with a large gas hob is the gas supply pipe could be undersized for the new hob and your gas man might refuse to connect it. Induction hobs are brilliant but you do need suitable pans to use (and no one with a pacemaker). If you're worried about loosing the gas you could go with domino hobs, basically these are 300 wide hobs which have joining strips so you can make your own hob design and combine different cooking methods, not the cheapest hobs but could be more functional for you.