I commented as much on your recent episode, but I somewhat prefer the box style panels rather than the line ones. Although if you do end up going that route, I'd encourage you to consider playing with the white space between panels a little bit more than in these quick mock ups! If the panels are that close together they might as well be black lines, more or less xD
Also I know not every comic does this, but some use conventions where the gutter space in between horizontal panels is smaller than between vertical ones (so like maybe in between the panels on the top row is 1/4" or something and in between row 1 and 2 is 3/8" or 1/2") Definitely not necessary but it's a tool to help control the reading speed of the panels
If they're all kind of evenly space, they all get read at the same pace, but if you have an action sequence tightly spaced together and then the aftermath shot with a little thicker gap, it can sometimes have more impact! That's similar to the principals vertical scroll comics use with their white space too (but they amp that concept up to the max xD I haven't personally worked with vertical scroll yet).