Did this sketch to try out new brushpens I got recently from @graphmastermarker
I got a pastel set and I like that colors are pastel but you can build a bright pigment by layering! Also it's water based so you can use water to blend it quite nice (just use thick watercolor paper for it!). The brush side nib is not flexible and it has a nib for thin details as well.
The thing I don't like is that I still don't understand how to use it perfectly and blend colors this way, well I have enough time to practice yey!