Western U.S. landscape oil painting... artist?

This is a nicely done impressionistic style late 20th century painting. It has a sticker on the back from the framing shop in Utah. Covered in brown paper looks like a Utah/ Colorado kind of landscape. Painting itself is about 8" by 10".
Any ideas on the artist's signature?............. S. R??????

Any help would be appreciated.

 

Would you post a photograph of the back please and a close-up photograph of the sticker? Both of these are helpful in dating which is, in turn, helpful in identifying artist.

Debora

 

Polly want a cracker.

Debora

 

Sharon Rajnus, her signature varies but it’s her.

 

https://www.heraldandnews.com/membe...cle_bb5c6ee8-f1f0-11e3-b607-0019bb2963f4.html



love the painting, but the recognized art of the article above has nothing to do with the subject matter (aviation art for a book). Still nice street cred to support the painting's value.
https://rajnusart.com/ shows the connection with aviation art, so it's probably her.

 

Thank you all!

 

Ditto all of that!