Scarlet X Green Wing pointers

[Andorinha]

Hello,
I'm sorry if it's not the proper forum to upload it, but I made this Scientific Illustration showing the differences between these species and since I've never got to interact with neither up close I wanted some pointers

What is missing, or what is wrong? I've been told the rectrices of the scarlet are longer, though I didnt try making it on scale

Thanks!

 

[MarciaLove]

thats so cool!! amazing job ive only ever socialized with scarlets but it looks good!!!