They don't look bad, actually. It's hard to make good kitbashes. Very few have I seen are any good. Yours are good. HKS did good kitbashes too but he was never a kitbasher. I think it all comes down to technique. Once you have that you are good.
Show them your butt, and when you do, slap it so it creates a sound akin to a chorus of screaming spider monkeys flogging a chime with cacti. Only then can you find your destiny at the tip of the shaft.