Hello. Here are some links that might be helpful.
17 DIY-Inspiring Kitchen Backsplashes | Hometalk
This How to Use Old Blinds as a Back-splash! DIY | Hometalk links might be helpful
How to install a closet clothing g rod
Here are three cool ideas: https://www.youtube.com/watch?v=tNEt102h4RM
What is your definition of beautiful?
Glass mosaic tiles can be had for $4 a square foot if one shops very carefully. Going rate is more like $10 a square foot.
They can be cut with grozing nippers, but it is not easy, so buy small sizes.
Mastic to wall and grout with acrylic modified non-sanded grout and then seal the grout a week later.
Tile would be my favorite. It isn't difficult to do, just time consuming and meticulous.