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It's best to add a drawing tag instead of the new or nature tag
When you add a post as the first tag, it's best to give a drawing tag, then art tag, so you have a more popular post :)

Thx for help! I dont see drawing category on left side of this page. 2 tags is enought or better give more tags?

The most important are the two tags in your case, if you're drawing
First you add post and give tag
drawing
Second importing tag its
art
then you add as many tags as you can and it's up to you what they will be, if you want to change the tag, edit the post and replace the tags by removing one and adding another like drawing.
PS only you can not change the first tag is the only flaw because steemit has already attributed your post to this category, remember the first two tags
drawing then art
the rest of the tags you add what you want,and always upvote your own post, everyone does it because everybody upvote is important!!!

upvote? so i have to vote for my own post?

Panda is still hungry!