Art, a rug and some colorful accessories

I don't think it is sterile at all, maybe just a big change you are needing to get used to :)

Add a rug in front of your sink - you can even switch it out from season to season if you want (warmer colors for fall and winter and lighter/brighter for spring/summer)

Once the rug is down, reassess....I'm betting that addition alone will satisfy your concern for finishing touches.

I agree that it doesn't look sterile, and also that some color might be great - rug, dishtowels, accessories, etc..

Am rug shopping now. Thank you