As Squishy said, we all had to start somewhere. From what i can see on your photo i think that your paint is abit too thick. It looks pretty grainy around the big dots on the top
of the sheet. Try reducing your paint some more and you will also do better with the small dots then. It´s all practice practice and more practice, you will get better pretty soon
when you are doing all the worksheets .
thats really good, i'm not doing the tutor i'm going for one of those train yourself so yea alot of poeple will be better than me and like squishy we start some where