Mixing and Mastering Sample Beats(particularly samples that have drums in it already)

Hey FP, I have a question about mixing and mastering beats that are sample based but more particularly ones that have drums in it. I use FL Studio and I feel like my mixes are pretty good for the most part but when I sample songs that have drums in it I feel like maybe my drums aren't loud enough to cover the kicks and snares already in the sample. Sometimes I feel like I still hear them in contrast to my own drums. Anyways I want to link my sound cloud and see what you guys think and maybe you could tell me what you think and maybe if I need to lower my samples volume or raise my drums volume or maybe my mixes are correct.

Heres my sound cloud:Rob Burgundy's sounds on SoundCloud - Hear the world

Thanks again feedback always appreciated !