Yes, otherwise I would have said it was an amateur or learner designer. But I think for a DIY you have done well because I have seen some done supposedly by professionals and your's is better
However, costs come into it, and Rome wasn't built in a day, so you do what you can with what you have, and I cant and wouldnt ever slate anyone for having a go themselves!
My brother is planning to start doing electric gate installations in a few months so if you ever need to sub-out let me know! (He is an electronics EMC test engineer by trade but wants to do his own thing now), so that was the reason for asking about the gates. He's done Sir Roberts McAlpine's house gates and gates for British Sugar amongst others, in a previous life!