Gifted Issues Discussion homepage Forums Twice Exceptional technical drawing

Do any of you have experience of/know much about children's technical drawing. DS7 HG has always had a strong technical connection in his art work - lots of 3D, distance perspective etc.
Recently DD5 has been surprising me (She doesn't strike me as gifted usually though with both brothers being, my experience of what is normal development has been a little confused.) Imagine you are drawing a picture of yourself painting some flags on a Summer's Day. This morning she decided to do just that. Precisely and with depth - table behind paper behind palette with paints (a row in the foreground and mixed ones behind) with hands on either side on top of that.
The piece isn't particularly tidy, and certainly not 'wildly creative', but technically it is accurate and she was working from memory.
My other son, also G has nothing of this going on. I'm sure you can be good at this and not I.Q. gifted, but wondered if it was something quite common or not.

I'm no expert but that sounds amazing. Hope you get more input here. This is interesting. Have you researched artistically gifted?

Thanks onthegomom (love that name). Just realized that I put the question on the 2E thread instead of General. Not sure how to fix that.
As to research, I haven't looked very far. I seem to get caught up in the general artistic information, and I guess I'm particularly wondering about the technical and depth perspective aspects.