Asian silk painting - can anyone read the signature?

This is a friend's silk painting. I was hoping to help him find out some info about it, and I've found a few resources which are broken up into China / Japan, etc. We're stuck trying to figure out which language the signature is written in. Can anyone help?

Also, most of these type paintings seem to be vertical. Do horizontal paintings point to a certain region / timeframe?

His grandfather was in the navy, and the family believes he brought it back from one of his Pacific deployments in the WWII / Korean War timeframe. They're guessing it was likely made for the tourist / servicemen souvenir trade.

I'm attaching the full-size pics via thumbnails, so you can see the detail. Each is less than 1MB in size, but I didn't want to clog up anyone's connection.

If anyone can point me in the right direction, I'd appreciate the advice. Thanks!

Full landscape:


Signature detail from bottom-left corner. Unfortunately, the red stamp at the bottom seems to have lost its detail over time:

 

Thought I'd give this a nudge...

 

I really like the pumpkin and squirrel. Did you take that photo or borrow it? Fantastic!

As for the silk painting, I think it is a vintage tourist piece, as you suggested.

Maybe others will have thoughts, but I don't believe it warrants further research. It is nice enough for what it is, and agreed large horizontal views in this kind of thing are less common, but it looks pretty generic post war tourist to me, and I'm not seeing a high level of artistic skill in it. It might have some "vintage Asian" value/appeal but not huge money in my opinion.

Disclaimer: I am not an art expert, just my 2 cents as a collector and seller of vintage. Thanks for showing it.

 

Thanks Lucille!