Adjust YouTube Banner for Proper Fit

I need assistance with adjusting my existing YouTube banner and profile art to ensure they fit correctly on the platform. Although I have already created the art, I'm experiencing issues with the banner being cut off.

Key Requirements:
- Adjust the dimensions of the YouTube banner to prevent it from being cut off.
- Ensure the profile art aligns properly with YouTube's display requirements.
- Maintain the quality of the images without causing blurriness or pixelation.

Ideal Skills and Experience:
- Experience with graphic design, specifically for YouTube channel art.
- Familiarity with YouTube's size and dimension guidelines for banners and profile pictures.
- Proficiency in image editing software to make precise adjustments.

Your expertise in resolving these fitting issues will be greatly appreciated!