Good start. i like that you have not gone overboard on cleaning out the branches. Some people strip everything all the way out to the tips
There are a number of things I'm picking up that may help.
The branches you have chosen are opposite each other. In bonsai we call that bar branching. Visually bar branches interrupt our eyes as they travel up the trunk and cause unconscious uneasiness. Our minds prefer to look at staggered branches. Physically those opposite branches will eventually cause the trunk to thicken more near the junctions and you'll end up with reverse taper which also does not look good. Avoid bar branches wherever possible.
The problem with really small bonsai is that there's just not enough room to fit in all the branches an not have them close together so you may just have to keep one or both pairs.
Visual depth: it looks like all the branches are currently to the sides so there is very little depth to the tree. Back branches are important to give a 3D feel to our trees. maybe one of those branches could be bent toward the back to give some depth?
Straight branches on a bendy trunk: Most of us start off this way but feel there's just something not quite right. turns out our subconscious mind knows that bendy trunks should have bendy branches because whatever elemental forces caused that trunk to grow sideways was also acting on the branches as they grew. Try to have a theme right through a bonsai. Straight branches look OK on a straight trunk but bent trunks deserve branches with some bends too. Bends can be up and down or back and forth (remember 3D!) or a combination.
Some hints on wiring may help.
Make turns of your wire a little closer together. That will help support the bends in the branches and trunks. Most experts talk about winding wire on at around 45 deg. In actual fact 45 is a little too close together but the wire you've wound on is closer to straight. Somewhere between will be much neater and more effective.
When wiring branches that are close together or opposite as you have here it is better NOT to go straight across to the other branch a you have done. When yo try to bend one of those branches down or back the one on the other side is likely to move in the opposite direction. A better solution is to wire a lower branch with one higher up so you can get at least a full turn of wire round the trunk before going out onto another branch. That will provide a much better anchor so that branches can be moved independently.
wiring effectively (and neatly) is quite an art and takes a few years to get it right.
We can talk about the top of the tree when you have had a chance to consider those suggestions.
As always, the tree is yours. These are just my opinions and you are entirely free to accept or ignore them.
