I think those look impressive.
A few things though:
1. Is this a finished one? I do hope you\'re going to base it, as that can complete and compliment the model. I like to apply the basing material before I undercoat it (Chaos Black spray), as this makes it easier to paint the stuff.
A hint though; if you use sand, once the PVA glue has dried, apply a layer of watered-down PVA to the sand to make sure it stays on the base (nothing looks worse than an unpainted bit on a model); it also makes it easier to paint, and looks better.
2. I noticed there are a few areas on the model that have been left black, like on the backs of the feet, the underside of the shields, etc. Whether this is unintentional or not, it can do better to paint these parts or the model may look unfinished. Believe me, I know.
If this is because you\'ve not been able to reach those areas or have difficulty painting them, it may be better, as if it\'s badly painted, it may look worse.
Apart from that, those models are quite good. They\'re better than my standard when I was new. The drybrushing (I\'m guessing it is?) has quite a nice effect.
Thumbs up mate!