The block that I'm using this week is called Irish Logs. It's a pretty complex block but you get some cook secondary designs from blocks like these. I tried to save each iteration to show you what a difference small changes can make.
I started with straight blocks in a horizontal arrangement and I stuck with the horizontal set all through.
I didn't like the look of partial blocks on the edges so I edited the block to create some border blocks. I like this.
All I changed here was to use a lighter value of the yellow for the background and to use the yellow in the borders. I think it made a big difference and makes the quilt less harsh.
All I did here was change one red triangle to a medium value which makes the whole quilt much more interesting.
Here I changed the red to purple-red. Not much difference from the red.
Here I basically switched values so that the background is dark and the details of the block are light values. In all of these I used the Warm Color Wheel gradient.
This one uses more red-purple than purple and extends the light green-yellow background into the outside border. I like this one a lot.
Finally, here's one using the red gradient with green-blue for a Christmas version. I like this one too.