Look at the tab My eBay
Scroll to Selling.
There you are.
Please note that it can take up to 24 hours for a new listing to 'index'. This is even more true if the item offered is high value or in a high fraud category.
You now have five paintings listed. Two of your titles have spelling mistakes.
You have 80 keystrokes to sell your items. Free. Use all of them. The names you give your paintings are unlikely to be searched. The topic, colour (yeah, couch paintings, sigh), medium, size, date, artist's name, could be added.
If you have training or have exhibited, you could add that information to encourage investors in the description.