Dedicated to Airbrush 5: Buildings

Ken gave me the Fortress of Redemption five years ago as a Christmas present and it has sat in the box until two weeks ago.  Without the airbrush, painting a model of this size was just too daunting.  I could have just spray painted it with a green, washed it, and then finished with a copious amount of drybrushing; but that is no longer my style.  BTW: this still consumed a full can of Chaos Black primer. 
Like many of the large models seen in my previous posts, I painted this model in parts.  The floor was painted with Vallejo's air metallic rust color and the lascannon was painted with air metallic boltgun.  The green parts of the model were painting using the zenithal highlight technique and then the edges were hardlined.  The steel wings of the dark angle on the tower were the first parts airbrushed with air metallic steel while using a paint on [latex] mask.  After painting the main tower portion green, I applied the liquid latex around the edges of the wings and then taped off the larger sections.  Results were not as clean I had hoped but I think that is due to lack of practice.  Some of the latex peeled of nicely, but some of it did not and efforts to remove it just smeared the steel paint that was on its surface onto parts I did not want steel.  In the end, I had to do much more touch up work than I had expected.   
On a non-airbrush-related-note, I have found and come to appreciate alcohol-based metallic (brush on) paint; specifically Vallejo's liquid metal gold.  See this YouTube video for a great demo.  I have found that both GW's and Vallejo's arcylic gold require several (4+) coats while these liquid gold paints are very opaque in 2.  The fortress model had lots of areas that I wanted to be gold and using GW's gold would have driven me nuts.