From this distance, Id choose right for the vertical lines.

Please add a picture to show how much of the tile will cover your walls.

Both are fine. But I might do one with more white in it. If it’s a smaller space. Something like this?

the left one has more of a fun vibe w theme of traditional at the same time. Have not seen that before. But do you have enuf backsplash height for the pattern to work? If it fits in okay I think I might go for it.

Neither to bathroomy for my taste as is the basketweave suggested above

Pretty busy designs. Would want to see them in context with the whole space to make a decision; that would include the other spaces that meld into the open concept kitchen.

I would go with the left since it has an equal amount of white and gray while the right has too much gray in it might just be a heavy backsplash for the rest since the cabinets are white

I have the picket ( one on the right) with my white Shaker style cabinets. I like the texture and the touch of color the tile provides.

I like them both but need to see the rest of the kitchen and see how much backsplash is going up.

Both are nice but the left tile is larger with more impact.

Don’t mind the mess lol

I like the one on left but not sure you can fit at least 2 full rows in the space?

I like the one on the left, but I fear if it were my kitchen, I might get tired of it after a year or two. The one on the right feels safer for a long-term decision.

I like the left, with the new views. Feels festive and almost like a floral tile while being more neutral in fact. The one on the right feels more safe, but will have little impact from a distance.

I would go smaller? I like the idea of the floral, but it looks like you won’t get 3 complete rows.

The left one (flower).

What look are you going for? Contemporary, traditional? The left is brighter and will open up the space, the right will close it up some. If i were going to do pickets I’d do longer ones., just to give the illusion of more space. Between the two, I vote for the left!

Left! But I'm not sure you can fit enough of the pattern in. I don't suppose there's a smaller one?

("Don't mind the mess"???? Please come mess up my kitchen!)

Definitely the one on the left! It's great!

Can we see the picket turned sideways, running horizontally?

The one on the right is a big No - it is too busy, with a lot of grout lines and even worse, each tile is a different color and pattern. I would not want that on my backsplash. Between the two you show, the one on the left is preferable to the one on the right.