I use alclad and then i mixed some vallejo matt and satin varnish with water, this mix makes te varnish leave a semi transparent shine of the crome base, the I use some pre shade lines a lot of mixtures of acrylic paints , Q-tips, vallejo thinner, ak products, and a lot of time figuring out the beat up scheme . Im going to update this picture because now it`s about 90% completed...I hope you like it.