How to remove annoying photo from skype desktop?

I always see unknown girl photo in my Windows version Skype in its "desktop" with caption:

How to make free voice and video calls

I don't know this person and I'm slightly tired see her face in my Skype. Is any way totally remove it from Skype?

Click VIEW in the menu. Then click SPLIT WINDOW VIEW. Then click SINGLE WINDOW VIEW

I will dig deeper into this later and give it a better more in depth answer.

1. Open your Skype
2. Go to Tools > Change Language
3. At bottom - Click Edit Skype Language File...
4. Language file editor will show up - click on Save as - then save it somewhere.
5. Back to Tools > Change Language
6. At bottom - Click Load Skype language file...
7. Select the language file you saved before and click Open.
8. Restart Skype

In Skype open Tools -> Change language. At the bottom of the language list select the option: Edit Skype Language File. The Language Editor window will pop-up. Click now on the Save as button and save the language file with a name of your choice. Open again Tools -> Change language and load this user defined language file.

You will not see any "instructional messages" anymore.