Errr... welcome to the forum. As for feedback, I hate to sound harsh but it's really not great.
To be fair, though, you need to stop making two-second weld runs - have a decent go at a whole seam and then both you and we will be better able to critique your efforts. I'm afraid that all we have in this picture are a bunch of fire, stop, fire, stop welds.
So go for a longer run, as fitter people than I would say - have you had a look here --> http://www.mig-welding.co.uk/mig.htm
Are you stopping and starting because you start to burn through?
What machine are you using?
What gas supply are you using, disposables or big bottle?
There appears to be a bit more than normal sooty deposit, suggests gas coverage issues which can be draughts, wrong flow pressure and or wrong torch angle, noticeable more in the bottom LH corner where access and seeing what you were doing would be more difficult.
I have no doubt it's strong enough, it depends really if you are happy with it visually.
Thank you both for the feed back, i know its not good or mint hence the feedback. and i appreciate the feedback.
To answer some of the questions, the welder is a mig180 thats all i know, its using disposable gas bottles on CO2, using 0.8mm wire.
the welding was done out side and could have caused the wind but it was also a hard to rear area in the car engine bag, the very bottom corner was not the best in being cleaned up with the old seam sealer so this might also be the reason it was crap.
Im happy in the fact it passed the mot like it but i also ways like to know where i went wrong so i can improve.