Based on the definition of appositive, this is a noun or noun phrase that is used to rename the another noun beside it. Basing on the given sentence above, I believe that it does not have an appositive. The nouns are Joe and Tulips, but no other noun that renames either of the two. Hope this answer helps. Have a great day!
<u>Flashback</u> is a plot device, which interrupts a narrative in order to show past events. Dramas often have this.
For Tom thought of the lands beyond his home, a dream of adventure sprung in his mind, to seek the world's unknown in it's waning light, and cross the bridge to another life. So for Tom to embark 'ere adventure await, and his good friend Bob by his fringe, he crossed the last known bridge to the unknown lands, 'ere to quell his spirit of adventure that festers in him. But what lays ahead in these uncharted lands, Tom knew not though freedom reigns, and his spirit moved towards these undying lands, lit by the sun but never trodden, oh that uncharted land beyond that bridge.
.