First thing to do is make sure you’re working with the correct texture. If you’re working with a managing host, he/she will tell you the correct texture, if not then usually go for a ‘ramp print’ style. The default one has a little too much glow so I tend to go for something a bit stronger.
This is practically irrelevant. People use guides on what will most likely be their own server or their friends, providing this random statement is pointless.
Throwing in terms that aren't easy to understand when they aren't pictured on a building game:
When constructing walls, always remember to indent. Nobody wants to see some ugly flat faced buildings. Always indent. This may result in having to use the above method of filling gaps, but your build will look much nicer.
When placing windows, indent them a stud and colour them different to the walls, this tends to make the windows stand out more.
When adding a roof to your building, if you’ve indented your walls a lot you may not be able to easily get a flat roof. Adding an 8x ¼ layer of bricks to the top of your roof will make a stylish and easily coverable feature to your roof. I recommend then adding blocks to represent ventilation units.
What the forget is indenting? Indenting can mean a bunch of things, especially on Blockland. This guide has to be straight forward, have pictures and provide basic information. It shouldn't have random facts that most people will mostly likely not remember. Besides, terrain is mostly free-hand and modular terrain itself is extremely simple to grasp and use, even the weakest Blockland builders know how to piece a hill together and slab a couple cubes on top to create a tower.
I don't mean to bash, but laziness and in-completion is no excuse for a guide. A guide is meant to cover most issues/challenges based on what it is, you however, have not done that and haven't even provided pictures.