Designing practical things (tools, vehicles, buildings) is something I am eager to improve on, significantly and fast
Since I need a lot of it for comic-book drawing. Everything from humble wooden houses, to large complexes, I find it very challenging, particularily because I must imagine very foreign mindsets from my own - as they have built something.
I am often too practical, and tend to end up with very "industrial" looks for most my designs, again neglecting a whole array of other potential solutions :I most of which feel unpractical, illogical or counter-intuitive to me
some solutions are simply ugly, and uglyness is often a very difficult thing to "allow" when making designs