Hello again Tomo!
I think it gets easier to chose a bow when you have been playing for longer, as you start to know more about what you want from the bow and you can do more different types of bowstrokes. When I upgrade my bow (which is looking further and further in the future as I add up the cost of full-size cello for daughter, hard case for daughter, new bow for daughter......but so be it, she is having such a glorious time playing cello that it is worth all the cost) I will be looking for one which is well balanced as this makes it easier to play spiccato and sautille strokes, one that gets the string to speak without too much effort on my part and I will want it to not feel too heavy in my hand, as I know this can increase one's risk of injury when playing a lot. I'm sure other folk will give you more detailed advice

as they will have been playing longer than me and will know more about more advanced things. You really have to try out different bows with your cello to know what works for you as we are all different in terms of our biodynamics and need different bows to accommodate this. Plus dfferent bows get different sounds out of the same cello........complicated isn't it? My luthier gave me a whole lot of bows to try and very tactfully left me and the cello alone to fiddle - don't be afraid to do the same. You might also be able to get your teacher's advice on this - some shops or luthiers will let you take bows on approval to try at home, or your teacher may be willing to go in and have a play herself. You could also ask if you could try her bow and get her to talk you through the diferences between this and your bow, as I know it is harder to know what you are looking for when you are relatively new to all of this. Take your time about making a decision and don't feel it has to be perfect first time - lots of players have more than one bow and very handy it is too - I still have my horrid old one and I've lent it to dear daughter when she left hers at school by mistake

, plus that way you have a spare if anything goes wrong with your main one or it needs a rehair. So you could buy one for now, then look at upgrading further on down the track when you have more experience.......what a great excuse for more cello related shopping!! (I can hear my hubby groaning...)
Wolfnotes