Hey Brian, to answer your question, yes I've done this in the past on (other) porn sites as requested "tributes" from females wanting to watch me stroke out a big load of cum from my cock to their pics/videos, but I don't really do individual "tributes" anymore. I prefer to just do them solo now and post them up for everyone who enjoys watching a cum shot to enjoy, instead.
I've got one video (so far) of myself posted to my profile that I shot with my phone. I've experimented with using a tripod stand to film with and alternatively, holding my phone in one hand in front of my cock while I jack off and cum with the other. It's (obviously) easier to frame and capture the action with a steady tripod but there's something kind of hot about a slightly shaky hand-held capture too, IMHO. My upload on my profile is a hand-held cum shot and I filmed it in slow motion, as well. It's a little shaky, but my cock is framed pretty nicely in the video and it was a pretty nice, big load, shooting almost straight on at the camera. I was quite pleased with the results.
It's cool that you've got 20 videos on your camera. That's a lot of spilled semen! Any plans on uploading them? I'm straight, but I can appreciate a nice, big ball-draining load being "soloed" from a hard cock as much as the next person, you know? And I might add, that's quite a creamy avatar pic you have there. Nicely done!