If you search for images a lot on Google then you have likely noticed that Google has recently removed the option to search for images by size ie Larger then xx MP
You can now only search for Icon/Medium/Large
This update, along with the image panel on the right, is quite annoying really.
That said, you can still search for images by size if you use the Advanced Image Search option.
Hopefully they will not remove the size filter option there too, but at least you can still search for larger images on that page.