They're pretty good but need more work 5/10

OK as you can tell from the previous responses.....it aint that great.

But you are a beginner and certain people start at certain levels.

I would suggest looking up some tutorials.
Don't look for avatar or signature tutorials.

Just look for tutorials that are worked around the programme you are using (GIMP)

Never give up.....it may seem hard to get the sam results as what you see others doing.
It takes a little time and patience but you will get there.