@dangras-almeida @HANDRO @Julia_J
Thanks for the encouraging words, they mean a lot to meeee <3
A little bit about my process. This is intended to be concept art set in the Fable game universe, it's a March challenge in Trent Kaniuga's discord server, Aquatic Moon. I have to make an exterior (and optionally, interior) environment piece, so something like a wizard's tower or a blacksmith shop, that would be useful for a hypothetical 3D artist to be able to work from.
From research, Fable architecture has very funky rooftops and very exaggerated proportions to buildings, including sloped walls and crazy insane masonry. The two approaches to this were doing a 3D greybox beforehand and drawing over a simple geometry setup to use as perspective, or free-hand a sketch and correct the perspective later. I chose the latter option.
If you scroll up, you can faintly see the sketch I worked with. That's free-hand. No guides, no structure, just working with boxes and appealing shapes. To finish the line-art, I overlaid it with a fitted perspective grid (using Perspective_tools_v2, for Photoshop). The grid is nearly isometric, but there is a slight convergence to very distant vanishing points. I was lucky that my original sketch had good perspective, because I did not have to correct too much - basically I used lasso + free transform to fix the problem areas into compliance.
Finally, I decided early on that I would have a rigid hierarchy to my line weights. The biggest line-weight is set to overlapping shapes, such as the outer line of a rooftop. Medium lines are for material changes, such between the timber and masonry of a wall. Finally, thin lines for textural stuff. To avoid having too many lines, I avoided lining the convex plane changes that face the viewer, such as corners of boxes and beams, unless there was a cut-out involved.
The result, painstaking as it was, is a line-art that reads fairly well and follows accurate perspective. I work as an engineer during the day, so it was done over the course of 4 evenings, so I'm probably a good 15 hours into this drawing already. It's really a monster.
Line-art, such a love-hate relationship...
The coloring has already started and it's going pretty fast - my sanity's intact!