OK, so you are talking about the resolution. It is 427 by 640, so about what you suspected.
I do try to keep the resolution fairly low for stuff I put on the net, to make it not interesting to steal for commercial purposes. Still it should be readable to be any reason to post it all.
To me this size is readable. That is on a PC with an OK screen. Maybe it is different if you look at it using a mobile phone or a tablet (which I don't).
I'm planning to submit this comic (16 pages), one page a day here at my page and then make a thread in the art forum with the cover and pages as a unit.
I think I'll stick with this resolution for my page, but maybe I'll do a higher resolution in the forum thread.
Anyway thanks for the feed back.