Hi,
Congrats on the continued work. Its 2am in the morning here in New Zealand, so I won't write much. Can't sleep tonight.
Reading your post I felt there is some good enthusiasm there. I liked that. Wanted to add though that Videography is quite a vast subject. I'd pay a lot of attention to what makes a good product and what aspects detract from it, in your line of work.
Sound is a surprisingly important factor. Do not overlook it as a contributor to producing a top class output.
That narrow depth of field look is cool, no doubt, but it can be incredibly difficult to work with. If you go down that route, make sure you have something that can assist you to control the focus point. Either focus peaking that you can tune the sensitivity of, or a larger monitor to help visualise it better etc. Often it's safer to mix a wider shot with a lot of the image in focus, with overlays of narrow depth of field shots for interest etc.
Always be thinking of the money shot. That's the one that whilst not necessarily artistically perfect, you've at least got it to fall back on, even if it's not exciting. Audio backing tracks are useful too, for ambient sounds etc. You're going to need to get your head around a video editing software package also. Apologies if you've got this covered, but honing your skills in this area once again will assist significantly in how professional your videos feel.
Plenty of event video work is done on DSLR type bodies. Plenty. Production values is what will set you apart. How you use your tools is more important that than the tools you have, up until a certain point. All the best.
Food for thought also: