I tried to upload and i posted but it got deleted.

Reason for deletion was apparently it didn't meet minimum
Standards.

I don't really understand what this means. I even have credit to
the creator of the image.

It was krystal_starfox feet/paws by horsemage.

I really like to upload this image can someone tell me what's is needed please.

I'm not sure what isn't clear about this message:

Does not meet minimum quality standards (Artistic)

The post does not meet the site's minimum quality standards. Specifically, the artistic ones.
It has nothing to do with tags or crediting.

In fact, we have a thread right here on the forum explaining why a post might get deleted: https://e621.net/forum_topics/23578
You should read the section labeled as "What does the deletion reason mean?"

cinder said:
I'm not sure what isn't clear about this message:

The post does not meet the site's minimum quality standards. Specifically, the artistic ones.
It has nothing to do with tags or crediting.

In fact, we have a thread right here on the forum explaining why a post might get deleted: https://e621.net/forum_topics/23578
You should read the section labeled as "What does the deletion reason mean?"

Ok thanks. I'll check it out