About Speed modeling :)
Create a simple and complex Pattern at the same time, save it. And with each new object, use it in aTtach mode (with Shift when you want to "cut" to the mass). Coupled with the "internal" displacement of the matrix (CTRL), it is extremely effective! (and 3 keys to remember, T, Shift, CTRL) for "short memories" like me, it's perfect!
And of course you can create a Pattern in a 2nd matrix and bring it back to the 1st one as you wish!



6 secondes modeling and if you have yet render parameters for previous objects that all!



Some colors effects if wanted...