The script below generates two side by side 3D histograms (OS - Windows, RStudio v 98.507). I'm trying to avoid using a TIFF file editor to cleanup the figure, and would like to create fully reproducible output using R script. Help would be appreciated to: -reverse the direction of the arrow on the 'depth' axis. -change the coloration of the legend, particularly in version2 (the binomial example below), to match the output color or remove the legend. -add two text lines for specific axis titles, such as "Depth" with "Low High" beneath that. -add 2 lines (or a square) on the "floor" of the version2 histogram, to delineate the quadrant with highest Width and lowest Depth. -add a text box and arrow pointing specific locations (mid-point on each top 'wire' of the box frame). Thanks very much for your help on this. install.packages("plot3D") require(plot3D) par(mfrow=c(1,2)) par(mar=c(2.0,1.5,0.5,0.5)) par(oma=c(3,2,2,0)) hist3D(z=matrix(rnorm(100),10,10), expand=.5, alpha=.5, shade=.75, theta=130, phi=20, cex=2, main="version1", xlab="Depth", ylab="Width",zlab="Height") hist3D(z=matrix(rbinom(100,10,.01),10,10), expand=.5, alpha=.5, shade=.75, theta=130, phi=20, main="version2", xlab="Depth", ylab="Width",zlab="Height") [[alternative HTML version deleted]]