Hi, I've stayed reasonably loyal to your original logo here, but given it a fresh modern look - if you'd prefer to go for something completely new, let me know and I can work on that for you.
I would like something new for our logo with a blackbackround if it works. We like the arena symbol surrounding the logo but maybe something new like a Colosseum or a new arena circle or anything that you think might look good including arena fitness
I think it needs to be a bit more integrated in design and layout between the symbol and words, Can you work around with the circle logo, and maybe a brighter green for arena
I think the color needs to be more green instead of yellow, the circle around the logo is not quite right, i would like the dome in the background to be more Colosseum like, and connected in some way, our idea is training at the Colosseum of gladiators gym. And making it arty at the same time
I'm a little bit worried that the other designers will hang draw and quarter me for imitating the logo tournament logo - I'm going to try and head off any problems by starting a thread in the forum, and asking some moderators for advice - in theory it shouldn't be a problem, it's different enough, very relevant to your business, but sometimes people here like an easy target to cry foul - and this is an easy target!
lets take the elements separately - are you happy with the colour scheme ? what about the fonts ? is the colosseum what you imagined ? - does it need some other element ?. I'll have a think myself as well.