Transitional form DJing to production - two of my first track, am i starting right?

I've been mixing for well over a year now and I've dabbled in production but have never made anything worth while. Lately I've been getting more into it and getting used to figuring out how to use all the tools ad my disposal

Here's two track i've finished recently (both on mediafire because i don't feel like their sound cloud ready yet). Let me know what you guys think and where i could improve

im very new to this so any criticism is much appreciated

First a mashup - Bro safari's scumbag vs darko's Lean
http://www.mediafire.com/?2o25urm4c1u4x4k

Next my first original trap production: Bartlett - Popp (Original mix)
http://www.mediafire.com/file/b8f99ns5du6eg9r/Popp.wav

Thank yall! good vibes to all