That seems to have vastly improved the result. I still need to validate that the results match with the CoLab given the exact same images as I may be missing additional processing steps.
For folks who may run into similar issues, to normalize, I divided the image tensors by 255 like so:
const normalizedStyleImg= div(await browser.fromPixelsAsync(document.querySelector('.styleImage')), 255);
const normalizedContentImg = div(await browser.fromPixelsAsync(document.querySelector('.originalImage')), 255);