Your diapering looks fine to me. I prefer a tighter fit myself but that is entirely subjective. As long as your diapers are doing their job then its all good right?
Clothing? Onesies and plastic pants are a great accessory to diaper wearing. They're practical too for the DL if you're not feeling particularly AB'ish at the time. Of course the diaper you choose can go a long ways towards exploring the AB side of things. As for myself? I wear all types of diapers. If its a diaper and it works...then I'll wear it. I don't necessarily care what is printed on it. I wear pink diapers, 'sissy' diapers, 'girly' diapers...you name it....
I do kinda get a bit of a charge out of wearing pink diapers though....kinda taboo eh? Might be just me....
As for the sissy stuff...well I can't help you there. We have a number of great folks in the group who can provide you with much more info on the subject. I will say this about sissy attire....I like it. I like it when girls and boys dress up in cute outfits and express themselves. Its a good thing that we have a little bit of whimsy left in the world and the ABDL lifestyle is full of whimsy IMO...