Thank you guys to all your comments and critics. I really appreciated it.
To Sir Adam, thank you sir. Yes, at the start I thought that the proportions are wrong. But MatanglawinX helped me to achieve a proportioned torso. For the weight issues, the propellant tanks helped a lot to balance the weight within that position since they are solely placed at the center of gravity. The leg boosters are quite heavy as well. So they compensated the weight when I put the two BFGs.
By the way Sir, mate Shaid is correct, the picture that was posted was the work of Benjamin Wong aka Izzaku81.
To mate tsubaki, I used spray cans for this build. Then for the orange-gold psychoframe, I used flat black first, then gold, then a semi clear orange. the gold color will be your buffer for the shimmering/metallic effect. Credits to MatX who thought me for this color scheme.
Again, thank you again Guys! Thank you GAF!