Painting over cabinet doors can be tricky, depending on what material you're painting over. An easier alternative is just to replace the doors and drawers, and you can do this very cost-effectively by going for a plain melamine colour like this: If you have open cabinets instead of open shelves, it helps to keep the dust off but they still look great. Or you could go for wall cabinets either side like this:

You need to remove link it's got your address on it.

What look are you hoping to achieve? When you say 'update' can you elaborate?This kitchen looks new. Compared to my old Barbie pink, laminate, falling apart beast, this is a dream! I personally would never paint a kitchen myself- especially not one like this. Lots of sharp edges means lots of future chips/scratches. If it is 2-pack poly you could get it resprayed. I can see scope to change the cabinet pulls, add a plant or 2 to the shelves, bigreaders suggestions about moulding are awesome. Even if you got a cabinet maker to pull out the open-shelves and replace them with a timber or timber-laminate as a contrast. All this would soften it and add personality. I can see your roller blind on the window- changing that to a roman blind with a pattern/texture/colour through it would add character too.

I was thinking white marble laminate...but you see black edges so went black with a mirage texture, French oak drawers, white around fridge , oven, and black cupboards under sink. Splashback marble laminate.( black edges) Ignore floors, still to do. But we had black Windows so the black works.