I don't think it's too much to ask for at all. The log is literally already there, they just need to add the capability of selecting the print image on the fish's entry and putting it into a canvas you have in your inventory when putting the picture in your house. The only reason they didn't do this is because they wanted to add the usual "something to sell on the MB" crap to the feature, which quite frankly, I disagree with. If you haven't caught the fish, you have no right to display proof of its capture in your house. At least SE seems to agree with this opinion when it comes to the big blues, which they made untradeable I assume for this exact reason. Too bad Elasmosaurus is the only one who's print image is actually clear and not so blurry that you can't even tell what you're looking at.