This piece by Tchaikovsky is a short, celebratory piano composition written as a tribute, likely to Anton Rubinstein. It is characterized by its brilliant and energetic mood, employing virtuosic piano writing.
Focus on managing the rapid figuration and maintaining an overall brilliant and exciting character.
A Greeting to Anton Rubinstein is rated Henle level 5 of 9 — late intermediate repertoire, roughly ABRSM grades 6–7.
You should be comfortable at Henle level 5 — meaning you can already play level 4–5 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A Greeting to Anton Rubinstein is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.