The Sentence Diagram Generator will visually represent the grammatical structure of the sentence: "Her face clearly showing her excitement, the happy toddler laughed as she looks at her new toy."

1. Main Clause: "the happy toddler laughed"

   • Subject: "the happy toddler"
   • Verb: "laughed"

2. Adverbial Clause: "as she looks at her new toy"

   • Subordinate conjunction: "as"
   • Subject: "she"
   • Verb: "looks"
   • Prepositional phrase: "at her new toy"
     • Preposition: "at"
     • Object: "her new toy"
       • Adjective: "new"

3. Participial Phrase: "Her face clearly showing her excitement"

   • Subject: "Her face"
   • Verb: "showing"
   • Object: "her excitement"
   • Adverb: "clearly"

This structure can be visually diagrammed to illustrate the relationships between the components of the sentence.