studies = from photos and life

[lake]

I will use a grid for my next studies and see if that helps me in some way to correct my observation problem.

I don't think that using a grid is the best way to help you see proportion and shape. Try just spending more time on the drawing - flipping it, checking it against your ref...

Another fun trick to check yourself is to take your line drawing and lay it over your ref, as though you were doing a tracing. DO NOT TRACE, but use this method to check your drawing perhaps every hour or so, so you can see what you're doing right and what you're doing wrong.