Japanese / Chinese Artist Signature Help

[Cariboo5]

I believe this maybe from the 1950's to 1970's era (not 100% certain). Painting seems well done and probably a unlisted artist as I have looked
at over 800 signatures online and cannot find this one. All help in translating this is appreciated, thanks to all in advance....

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[Yang Hao]

The stamp is difficult to see because of the photo. Just a guess, but the first character of the signature looks like 李 lǐ (pronounced Lee) which is a common Chinese last name.

 

[Cariboo5]

The stamp is difficult to see because of the photo. Just a guess, but the first character of the signature looks like 李 lǐ (pronounced Lee) which is a common Chinese last name.

Thanks Yang Hao,

 

[Cariboo5]

Better picture of the artist stamp and also on the back written in pencil is a name but I cannot make it out.
Opinions on what it says written in pencil are appreciated....

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