dilettante

a person with a shallow or amateur interest in an art or field

Dilettante comes through delight. The person enjoys the art, but may stay at the pleasure level instead of doing the deep work.

The gallery owner dismissed him as a dilettante because he loved the scene but never studied the craft.

The surprising doorway is delight. A dilettante begins as someone who takes pleasure in art or learning.

Modern English often adds a sting: pleasure without depth, taste without discipline, interest without craft. That is why dilettante can sound insulting even though the root starts pleasantly.