Yes, this is mastered. I'm very lucky to work in a studio with a full Universal Audio suite, some nice Focusrite gear and some nice monitors.
I put these tracks through a bass enhancer, some EQ, some digital conv. reverb, a multiband compressor, a stereo-enhancer, some tube saturation and a limiter.
If you're looking for mastering and like my work, let me know your budget and we can work towards that.