Hi Dennis,
good to see nice, large scale models.
The only thing that I would suggest done differently is the camouflage pattern on your green-black Yak-1. As is,
the camouflage pattern is quite unconvincing: From what I know, there are no photos of this particular 812 iap Yak-1, but this doesn't mean it's camouflage could be a complete speculation. I know the camouflage is not your fantasy, but whoever made it didn't have a lot f evidence...
at
http://air-monger.com/yak-1-nestandartnyij-kamuflyazh.html the scheme is called "non-standard"
IMHO, something like skin below would be more probable:
Regards,
KL