Don't use transparency in a render cause that is confusing. It may look like you're trying to hide something although you're not.
The new shading style is rather daring but cool at the same time and still, very easy to do, so it probably came out of you being too lazy to make a proper shading.
PS* Am I the only one who thinks that this looks like an m16 carabine?
Well it could be the Russian Seiga semi auto shotgun. The civilian ones are made of wood & they are basically an AK converted to fired 12, .410 & 16 gauge shells. Over all its not bad & id give it a 3