I bought a similar camera from 7dayshop a couple of months ago £12.99 you can see some of the footage in this video, it cuts between this and my Canon 7D, no comparison as regards quality but at £12.99 it ain't that bad. I think I was shooting at 720p
Move the painting to somewhere else in the house where you can get further back, or take two shots in vertical format and stitch in software, just frame up each side with the picture and make sure you are parallel to the painting. I think I used a similar technique on one of my paintings some...
I'm not a member of a camera club, but used to play guitar regularly, doing this together online with Zoom is not possible due to the latency issue, however we have maintained contact by meeting up on Zoom for a weekly chat which has helped maintain relationships.
For wildlife focal length is always going to be king, however as already said getting as close as you can to the subject is important. I've used the Sigma 150-500, the Sigma 120-300 f2.8 with a 2X and also the Sigma 150-600 all good lenses. Practice your fieldcraft and perhaps get some camo sheeting