A large colorful and fun poster at the end on that wall.

Idea to hang vertically a rectangular picture/peg board to store kitchen items, etc.... Not pretty unless you feel it works with rose or green utensils....paint it a bright color and then white utensils...

of course a washable canvas print is always good. :)

An easily washed rug, bright poster in frame for the apron wall, and a mirror over the sink.

Pegboards in kitchens are genius. Julia Child had it very, very right with that one. I was thinking, in fact, that if I could build a house for myself it might feature a giant wall that would pull back to reveal all my kitchen stuff on a huge pegboard.

Also, yeah, a rug with color. Have fun with your space. Find fun objects at the thrift store. Use removable wall decals.

A nice solution could be hang up a metallic panel with small magnetic spice tins, or other magnetic stuff, like notes, holder and do on.