Hey, you can resize them a bit and save in slight lower JPG quality, then you can upload them here.
It looks pretty good for a hand-painted 1/72 model.
Nice build! So you planned to create the "305" Su-27-SKM? I am not sure about the blue colour, but might be lightning/photo. Anyway, don't worry about the serial, you would have had the IRST in the wrong place anyway
Yes, but I don't think I will go that way, there are really good website on kit building... but please to use the forum.