LLMs will support artists at tedious tasks to save time during production, they'll craft the important things and the LLM will fill in the gaps. Look at SpeedTree, its already in use in thousand of games and it generates plant models that have never seen a human touch, no one cared, and it is a matter of time until machine learning will enhance their algorithm.

If an artist cannot render the output they desire and needs the LLM for more than help with tedious work, like in the game here, it's the wrong tool. The artist will rob themselves of the potential to learn because they took a shortcut to creativity.