After playing the first few chapters, I think this hack needs more work to provide an experience that differs from FE6 in an enjoyable way.
Starting from an aesthetic standpoint, the changes made are more to the game’s detriment than its gain. The project looks bland, as all the tileset palettes seen so far are reused from FE8. Swapping the colors of two fire emblem games doesn’t feel “brand new” to me when I play. It lacks the identity of FE6’s original look while offering nothing original. In addition, the portrait recolors often lack good color choice and contrast.
Lance’s hair uses a muddied green that makes it look sickly rather than natural like the original. In addition, the shades of his armor blend together rather than creating the look of edges. Roy and Alan’s clothes suffer from the same issue.
Marcus’ pink armor is jarring in addition to continuing the trend of poor contrast.
In addition, the menu palette changes results in some text becoming ugly and hard to read.
Some items have no outline or random pixels of color.
The iron bow and blade are examples of this.
Aesthetically, the idea is solid but the execution could be better. Wolt is an example of a portrait and battle palette which stays true to the original idea in the new colors. I would recommend revisiting the colors to create more contrast and a feel similar to the original within the new style. Map palettes could use recoloring to make them similar to Elibe rather than Magvel.
Playing the beginning chapters, the gameplay changes made the experience less challenging without adding anything to balance them besides the increased range of archers. A good example of this is Deke, who has his level increased to 10, receiving a buff to his bases in addition to starting with a Hero Crest in his inventory. His improved performance as a result robs hard mode, the intended difficulty, of some of its challenge. The other character buffs work to similar effect as enemies remain similar to their original forms.
Overall, the project is ambitious in its novelty and the amount of time spent, but the execution needs some work.