How to Caulk a Bathtub | This First House

Why It Doesn't Work

• The thumbnail text 'CAULK A BATHTUB' simply repeats the video title, missing an opportunity to add intrigue.
• The visual of caulking a bucket is confusing and doesn't clearly show the actual bathtub project.
• The large purple sidebar wastes valuable space that could be used for a clearer, more impactful image.
• The overall composition lacks visual contrast and excitement, making it easy to scroll past.
• The small branding logo is unnecessary and clutters the thumbnail, reducing its effectiveness on mobile screens.