Print resolution

Hi,
How can I tell in photoshop that my resolution is good? I am doing something with watercolor and it looks a drop blurry (but isn’t that what watercolor is meant to look like?) so I just want to double check in photoshop that my resolution is good and it will come out sharp-ish when it prints.

image

I’m pretty sure 300 pixels per inch should be clear. Maybe it’s blurry because you have it on resampling… or because you’re viewing it zoomed in at more than 100%.

Thanks Rivka!
I think I was zooming in more than 100%…