Hello bud,

The claw itself is far larger than the other ones. They seem to be the same size.
(At least that´s how they look)

In any case, take a look here
https://dinosauricon.com/genera/deinonychus.html
Check the whole family, seems to have good artists renditions which might be usefull with your work.

Regards,

Oh, I forgot, .. looking better mate!

**EDIT**Hmm, this one´s a good read
https://dinosauricon.com/taxa/deinonychosauria.html