Ultra-realistic 8K full body portrait of [PLAYER], wearing their [NATION] national team …

Ultra-realistic 8K full body portrait of [PLAYER], wearing their [NATION] national team home kit (correct crest, sponsor logos, and kit colors), football boots, and socks pulled to the knee. Casually and unpretentiously leaning against a smooth light gray studio wall; hands are in pockets and one leg is crossed over the other, with relaxed and confident body language. Add to the wall next to him the national flag of his nation, rendered as a large, sharp vector graphic with clean overlapping polygonal shapes in a minimalist modern style — positioned right above the information: the player's name, and below the name: the nation, # jersey number.