-Update-Ok so I was having a problem with getting the image portrait replaced correctly because I was using Tile Molester to edit the palette instead of Advanced Palette Editor, once I switched over the colors loaded ok, the problem was that the SOTN Alucard portrait used far to many colors in its palette to look passable (I think it was over 20 colors in the palette and GBA only supports 16) so I went and used a different Alucard portrait instead.
Here are some images of some of the portraits replaced,
The top one is from the future Alucard hack, I used the same image as the one in my youtube video but like the SOTN portrait it uses so many colors that it did not load perfectly, but in comparison to the SOTN one that I was using this one came out looking passable so I decided to keep it.
The second image is from a hack I plan on making after this that I am going to call Castlevania Dawn of Symphony which is going to replace Soma's sprites with new Alucard sympony of the night inspired ones although they will be more unique and different from his from Symphony of the night since they are being made from scratch by Julian/Jop.