Let's take a rest here, Sukhoi series jets are really huge, this is 1/72nd scale but it still huge. 1/72 F-22 Raptor has the same length but still can't catch up with Sukhoi series when come to total area. Su-30MKM have more badass and dynamic shape, it's totally different style compared to F-22. But still, I love them both!
For the silver bling bling effect, I use Glossy Ultimate Black as the base, in order to create some REAL bling bling effect first your surface have to be completely smooth, sand it with fine grit sandpaper before you apply the black color. Mr.Hobby 028 Steel is recommend too since the Steel already have some silver element inside it, and it's much brighter than Black.
You can slowly sand it with very fine grit of sandpaper before you apply silver.