Just a suggestion...
While there is absolutely nothing wrong with your pictures the way the are, there are a couple of things you might consider to make it easier to evaluate the firearm in question.
Try to remove anything from the picture that is not relevant to what you what identified. An old white bed sheet draped over your wire shelf would suffice, better yet spread it out on a table, counter, or even the floor and shoot it there (the picture, not the rifle
).
If you can use natural light instead of the flash, your pictures won't have glare. Outside is best, if that's not an option, take the picture in front of a large window or sliding glass door. Even a couple of desk lamps will do in a pinch.
Use the macro setting on your camera for close-ups such as proof marks, receiver shots, etc. You will need to be within four inches or so on most cameras. (The crest on the Ariska would be an example)
I don't mean to suggest that there is anything wrong with your pictures, just thought it might be helpful. Feel free to pm me if you have any questions.