Comics UK

There was a strip in Princess that ran for a few years that looks similar. It looks foreign:

here's another:

I was sure I recognised the style and, as I'm one of those who often can't remember stuff, but knows where to find the answers, I started a trawl through my small collection of ref. books on Spanish comics. To no avail. Internet searches turned up a strip published by Bruguera in Zipi y Zapi with "Dorita"in the title, but it's not the one.
So, I'm back to my original thought that the strip "looks" Belgian or French. Sorry but I've drawn a blank.
You've got me really curious now and the search has added to my knowledge of Spanish comics at least. Thanks

In the earlier issues of Princess it was just called Minx, Dennis was added later - I wonder if they were cashing in on Dennis The Menace and Minnie the Minx?

I agree with Paw Broon, this comic does look French. The artwork looks similar to Spirou. It may well be from that title, or from it's main competitor Tintin.
This is the cover of a 1973 issue of Spirou. The picture at the top left shows the same style of eyes.

As does the main picture on this 1977 Tintin issue.