Another feature to look at would be colors of MTB wheels in 29",27.5",26". The wheel set could be matte or gloss. The spokes could be black or white. Spokes could be placed evenly or in a different pattern. The look of the wheel changes if there are a thick few spokes versus a lot of spokes. This will change the look of your ride. It will need to be something that you prefer.

It might also be worth looking into what color the logo could be in. Does a certain logo call your attention? Do you want the logo to call attention or not? The logo could be done to match your bike, outfit, or even team. Logo placement might be small or all over the wheel. Contact the manufacture if your really looking for something specific.

It is important to remember to not stress so much on just cycling wheels if this is your first wheel set. You can build a collection. Overtime you may have many wheel sets and change them when you see fit.