Oddly enough I saw something similar to the red, yellow, and black one in a newspaper later in the morning when I had posted my comment. It has two problems. Firstly it still does not completely remove Scotland as the assymetry of the red diagonal bits is based on having both Scotland and Ireland. Secondly to he extent that it does remove Scotland it removes the rest as well, sinve the yellow replaces the white which is supposed to be the backgruond of the English and Irish flags.
The article also gets it wrong about precedence. The most important part of a heraldic composition is the background, and as this is the blue of Scotland it is a Sottish flag with other bits bolted on. This could be seen as a recognition that the first king of both relams ruled Scotland before he nherited England.
Of the flags on the second page linked to, the "Union Jackson" looks quite amusing but would be hard to describe in words - or replicate consistently. Options adding the royal arms are just confusing two strands of imagery. The idea for simply replacing te blue with green is the best of tha bunch, but should be done in conjunction with making the red diagonal bits symmetric to complete the removal of the flag's Scottish elements.
The article also gets it wrong about precedence. The most important part of a heraldic composition is the background, and as this is the blue of Scotland it is a Sottish flag with other bits bolted on. This could be seen as a recognition that the first king of both relams ruled Scotland before he nherited England.
Of the flags on the second page linked to, the "Union Jackson" looks quite amusing but would be hard to describe in words - or replicate consistently. Options adding the royal arms are just confusing two strands of imagery. The idea for simply replacing te blue with green is the best of tha bunch, but should be done in conjunction with making the red diagonal bits symmetric to complete the removal of the flag's Scottish elements.