Its only after market if it is built for upgrading the kit or looks in scale as additional miner detail. The screws are a kit bash job and is interesting. The panel lines are not working, why not tri inking? The Shield is bad, this is not one of your better kits...
I'd have to agree, the sheild looks goofy, but I like the screws, they add a certain element to this. You are getting better, I think the thick panel-lines look good on SD kits. Keep it up.