Alfonso
Super pics, thanks for posting.
Yes those photos are very much in the Colt style. Are the cross bunkers cut out of natural ridges?
Thinking more about Colt's bunkering, pre WW1 courses like Manchester, Ringway, Denham, Beaconsfield, Northamptonshire, Sonning (a lot) have, or used to have, quite a lot of cross bunkers either to carry off the tee, or short of the green with some dead ground to run the ball up: similar to your Madrid aerials.
But thinking of some other pre WW1 courses, like Swinley, St George's Hill, Broadstone, Stoke Poges, Eden and there are not many cross bunkers. Mostly wing, a diagonal line or big bunkers that cut across at a diagonal but leave room to run the ball on one side.
St Germain which is from 1920s has quite a few cross bunkers (see Ran's profile), with a similar style too.
For Madrid, is really only the routing left from Colt's original design (or has that been altered much too?), or are some of the features still there too? Does the club still have those cool bridges, just like Addington?