How to sculpt block characters

I was wondering if anyone has tips on how to go about sculpting really blocky characters. I have a drawing of the character.

Should I model this traditionally with the modeling tools or sculpt? I’m having a hard time sculpting because it softens out the edges very quickly. I appreciate any tips.

It’s low poly character so I personally would go with traditional modeling. You could sculpt it but afterwards it would need to be retopologize so I think it’s not worth it.

I appreciate your input. I actually made way more progress modeling traditionally.