Hello @tereza.basarova, it is a pleasure to have her in this special community for artists... Welcome to OCA!!!

Your little fish are very beautiful, I love your work!

I leave this to see if it serves you or is what you are looking for... if you go to https://steempeak.com/@tereza.basarova/posts all your publications will appear and all you have to do is in the box your post below, in the part where they leave... (3 points followed), you will open several options such as "Add to Blog" and with that automatically your post will start to appear in the Blog section of your profile... also in that same part you get an option called "Crooss post in..." if you subscribe to several communities by clicking on that option you will get to share that same publication in other communities... for example, you publish in the community of OnChainArt but you want that same publication to appear in the OCD community, with that option you can do it... you just have to subscribe to those other communities so that when you do that you get the communities and you just have to choose which one to share.

Well Tereza, it's nice to meet you... I send you a great and warm greeting from Venezuela. ;)