Serge...
I like the second version, but would like to see the expected heights that you have displayed in the first version. So you end up with a grid that shows "optimum" glideslope points to evaluate after landing, without the cloud background. But, I'd have to agree with Spaz on one point... as I'd rather have it measured in MSL/ASL instead of above deck, in feet.
Personally, the colors seem fine, but if you get a buncha people that like something else, say lighter colors.... go with the popular vote. IF you do go with a different background color, I'd say go with grey or something subdued. Something easier on the eyes than computer screen black text on white background. Heck, even the light shade of blue-gray at the lower-most portion of the FSDT header on this page would work for me.
Later
Sludge